Patent Applications Published by the U.S. Alien Property Custodian (Alien Patents)

The following lists U.S. Alien Property Custodian Documents - Patent Applications Published During World War II (Alien Patents) in the NYPL collection, with links to images of these materials available at NYPL.

For a Database containing bibliographic data for these documents, visit http://db.library.queensu.ca/apcdocuments .

Class 1 - Nailing and Stapling

Serial Number	Inventor	Title	Patented
238144	Vancura, Rudolf	Stapling devices	US2381192
244995	Vancura, Rudolf	Stapling devices
276724	Muske, Franz	Stapling machines	US2365429
351747	Kunert, Josef	Paper fastening devices	US2347568
357954	Gleissner, Walter	Shoe-tip tacking machine with punching device	US2362480

Class 2 - Apparel

Serial Number	Inventor	Title	Patented
277366	Persin, Jean	Band of textile fabric adapted for having closure elements such as press-button closure elements pressed into the same
337084	Giardini, Virgilio	Limb guard
343057	Donner, Frederich Oswald	Manufacture of hosiery	US2338375
351649	Szekeres, Bela	Bathing cap	US2356126
368083	Benzer, Eugen	Double walled bathing cap
434119 ½	Lesser, Otto	Breeches, specifically pants
437192	Weisz, Tibor	Stockings	US2365161

Class 8 - Bleaching and Dyeing

Serial Number	Inventor	Title	Patented
172764	Franz, Ehrhart	Method of and means for treating textile materials
197895	Franz, Ehrhart	Bleaching textile fibre
221022	Quehl, Kurt	Finishing
250850	Baier, Hermann & Vieweg, Karl	Process for bleaching natural and artificial fibers and fibres of vegetable origin and free from incrustations
275399	Schnegg, Robert	Dyeing cellulose esters	US2347001
299777	Knopf, Erich	Method of bleaching cellulose
302408	Scheller, Emil & Gartner, Wilhelm	Process for the bleaching of celluloses obtained by alkaline processes
303912	Scheller, Emil & Gartner, Wilhelm	Process for the recovery of celluloses suitable for the manufacture of photographic papers
303913	Scheller, Emil & Gartner, Wilhelm	Process for the bleaching of celluloses
325654	Volz, Anton	Mercerizing baths and treatments with caustic alkali
327734	Chiera Di Vasco, Giorgio	Process for making artificial textile fabrics resistant to damp heat and to hot dyeing
347759	Scheller, Emil	Process for the manufacture of bleached cellulose
356112	Gartner, Wilhelm	Process for the manufacture of cigarette paper
356113	Gartner, Wilhelm	Method for the preparation of superior cellulose
356565	Haakh, Hermann	Process of Treating Fibeous Materials [Not in Queens U. Database]
358667	Schnegg, Robert	Dyeing cellulose esters	US2347001
375488	Elod, Egon	Process for the carroting of animal hairs
379722	Hermann, Laszlo [Laslo]	Process for manufacture of effect threads
386770	Bestian, Herbert	Process of improving casein fibers and the material thus obtained
391542	Mueller, Joachim & Pfitzner, Helmut	Process of dyeing shaped articles made from synthetic linear condensation polyamides and polyurethanes
401531	Scheller, Emil	Process for the bleaching of cellulose material
401673	Elod, Egon	Felting property of dyed shoddy
416422	Schubert, Ernst & Pierer, Heinz	Method of dyeing and finishing textiles
416423	Schubert, Ernst & Pierer, Heinz	Dyeing and finishing of textiles	US2369613

Class 9 - Boats and buoys

Serial Number	Inventor	Title	Patented
283290	Schutte, Willi	Collapsible boat	US2338976
315073	Schat, Ane Pieter	Ships lifeboats
332049	Caselle, Raffaele	Swimming and lifesaving equipments	US2392576
335629	Schat, Ane P.	Ships davits of the gravity type	US2352018
370077	Dybberg, Carl	Life-saving suit	US2348793
381116	Schat, Ane Pieter	Luffing davit	US2332871
416884	Schroder-Nielsen, Thorolf	Protecting and launching device for lifeboats	US2356539
418094	Pampinella, Antonino	Tipping gravity davits for lifeboats	US2385841

Class 10 - Bolt, nail, nut, rivet, and screw making

Serial Number	Inventor	Title	Patented
308140	Schwendenwein, Karl	Method and tool for cutting threads
338173	Heinold, Gustav Willy	Lock Washers and Method for Producing Same [In Queens U. Database, Class 151]
402042	Malagrino, Francesco	Device for cutting threads sidewise with automatically withdrawing tool	US2338951

Class 12 - Boot and shoe making

Serial Number	Inventor	Title	Patented
373679	Erbe, Arno	Shoe and boot pasting press with circulating press moulds	US2350738
374645	Walther, Heinrich, Sr.	Shoe forming and toe lasting machine	US2350849

Class 13 - Electric Furnaces

Serial Number	Inventor	Title	Patented
213267	Lefort des Ylouses, Gaston	High frequency electric furnace for the production of oxides of nitrogen
295028	Peyches, Yvan	Method and means for manufacturing glass
334633	Jung, Edwin Pierre	Devices for regulating the temperature of electric furnances of the resistance type	US2422734
409742	Sem, Mathias Ovrom, & Sejersted, Johannes	Arrangement in self-baking electrodes	US2337279
412885	Walter, Fritz	Low-frequency induction furnaces for fusing iron alloys
416888	Michelat, Leon	Gas removing device for electric furnaces	US2334275
438410	Dumarest, Francois	Method and furnace for electrically melting glass	US2350734
444238	Hagerup-Larssen, Georg	Electrode frame structures	US2338936

Class 14 - Bridges

Serial Number	Inventor	Title	Patented
228204	Haupt, Wilhelm	Suspension bridge	US2339925
291581	Thofehrn, Georg & Rauchholz, Heinrich	Portable bridge structure
377041	Freyssinet, Eugene	Process and device for the tensioning and anchoring of cables, particularly in concrete constructions	US2371882

Class 15 - Brushing, scrubbing, and general cleaning

Serial Number	Inventor	Title	Patented
190794	Weimers, Wilhelm	Suction brush for vacuum cleaners	US2350949
344417	Eisenlohr, Friedrich	Combined carpet sweeper and dust exhaustor

Class 16 - Miscellaneous hardware

Serial Number	Inventor	Title	Patented
368949	Cencioni, Livio	Concealed hinges
420411	Pettersen, Gunnar Nimrod	Door closers with oil brake	US2369601

Class 17 - Butchering

Serial Number	Inventor	Title	Patented
387351	Gotzinger, Karl	Sausage machine	US2341609
387504	Geldermans, Johan Eliza & de Hond, Anthonie	Process of separating shells and meats of crustacea	US233718
387514	Reerink, Engbert Harmen & Bussum, Jan Boeke & Weesp, Willem Stevens	Method of separating meats from the shells of mollusks

Class 18 - Plastics

Serial Number	Inventor	Title	Patented
96470	Ferretti, Antonio	Manufacture of artificial textile fibres	US2338918
106911	Sordelli, Stefano	Manufacture of artificial textiles	US2302508
197564	Wempe, Bernhard	Spinning nozzle
206948	Becker, Oscar Walter &Braun, Emil	Process and apparatus for the manufacture of artificial sausage skins
225207	Formhals, Anton	Method and apparatus for spinning	US2349950
230512	Roelen, Otto	Apparatus for forming threads of filaments from mixtures of solid and liquid matter
233688	Kasemann, Erwin	Polarizing bodies
245052	Klute, Friedrich & Heering, Harry	Method and an arrangement for the longitudinal convering of electric wires	US2350772
247986	Van Dalfsen, Jan Willem	Manufacture of rubber powders, rubber dispersions, ebonite powders and the like
249246	Muller, Hans	Method for squirting artificial substances onto wires, tubes, insulated conductors, cables and other shapes
253230	van den Bergh, Jacob & Milo, Gerardus Jacobus & van Dijk, Henri Evert Piet	Process of manufacturing filaments, films and the like from keratinous materials
254159	Lierg, Friedrich	Photosenstive material and process of making same
257029	de Kadt, George Stephan	Treatment of wet spun protein products
257030	de Kadt, George S.	Process for spinning proteins	US2398625
257546	Berg, Herbert	Power transmission elements
258329	Gastrow, Hans	Mechanical closing devices for injection moulding machines	US2370622
268117	Engel, Walter	Articles molded from synthetic resin
269395	Henning, Alfred	Joining parts made of thermoplastic material [In Queens U. Database, Class 154]
270919	Ferretti, Antonio	Manufacture of artificial textile fibres
273414	Hubert, Emil & Rein, Herbert	Monofils of synthetic resins
273526	Lepetit, Jean	Insulated electric conductors
273993	Haseke, Gustav Adolf	Manufacture of plates of large superficial area
277955	Kajita, Toshiji & Inoue, Ryohei	Process for manufacturing artificial fiber from protein contained in soy-bean	US2394308
277956	Kajita, Toshiji & Inoue, Ryohei	Process for manufacturing artificial fiber from protein contained in soy-bean	US2394309
280527	Campolunghi, Giovanni	Production of threads
285774	Bugge, Gunther	Wool-like artificial filaments	US2337969
285944	Swarovski, Daniel	Method and means for the production of ornamental screen-like material
286038	Frei, Karl	Apparatus for kneading and mixing rubber	US2415091
287002	Fraknoi, Rudolph	Hollow rubber toys of big size and process for their production
295606	Mertens, Willi	Method of additionally hardening natural or artificial substances of a particular structure having linear chain molecules	US2426111
299781	Amendola, Raffaele	Linoleum covering for floors
301162	Hopff, Heinrich & Ufer, Hanns	Producing injection-moulded articles
301175	Wehr, Wilhelm	Manufacture of records especially sound recording records from vinylpolymers
304632	Tritsmans, Remi Gustave & Hendrick, Serge	Manufacture of flexible sheet material	US2344482
304867	Lejeune, Emile Jean Albert	Process and device for the manufacture of gas masks	US2351981
307983	Schlack, Paul	Synthetic linear polyamides
313138	Freudnenberg, Hans	Manufacture of shaped products, such as flexible tubes, thin sheets or threads, from animal fibrous starting materials	US2389922
314347	Ricard, Marie Charles Leon	Process and device for the manufacture of moulded objects of a cellular, rubber-like substance having closed, gas-tight cells filled with gas, particularly of cellular ebonite
314526	Raschig, Klaus	Process and apparatus for continuously producing plastic masses	US2341651
314880	Ter Horst, Maria Gesina	Process for the manufacture of fibres, filaments, threads, films and the like from solutions of proteins, particularly casein
317950	Suchann, Alfred	Process and device for manufacturing pressings	US2342769
322152	Swarovski, Daniel	Method of mass production of objects formed of moldable material having embedded a plurality of small pieces	US2351080
323524	Hubert, Emil & Ludewig, Hermann	Process for the production of artificial leather, linoleum, covering fabrics, driving belts, packing rings and similar structures
326533	Opavsky, Walter	Production of hollow products	US2345144
326537	Vonbank, Josef	Production of soft rubber-like tubes,plates, rods, etc. out of polyvinal chlorides [Not in Queens U. Database]
328374	Amende, Joachim & Ender, Willibald	Manufacture of fibers and foils	US2416890
330725	Ferretti, Antonio	Embodiment in the process for manufacturing artificial textile fibres from animal casein
330726	Ferretti, Antonio	Embodiment in the process for manufacturing artificial textile fibres from animal casein	US2338916
330727	Ferretti, Antonio	Embodiment in the process for manufacturing artificial textile fibres from animal casein	US2338917
330728	Ferretti, Antonio	Embodiment in the process for manufacturing artificial textile fibres from animal casein
334656	van Bergen, Lambertus Alexander	Process for producing filaments, threads, fibres, bands, films and the like from proteins	US2354077
337600	Hubener, Carl	Vulcanizing molds for vehicle tires made of rubber	US231780
337674	Schmidberger, Heinrich	Molding press
337675	Schmidberger, Heinrich	Molding press	US2332937
338886	Kirchner, Gerhard	Process of producing articles by an injection moulding machine	US2350770
339371	Manfred, Otto	Method for the manufacture of pencil-leads
341183	Kleine, Johannes	Process for the production of artificial filaments, fibers, and foils	US2352328
341238	Meyer, Fritz Rolf & Ufer, Wilhelm	Welding burner for thermoplastic materials
341900	Burkhardt, Max & Czapp, Erich & Jedele, Alfred	Process for the production of protheses	US2341593
342400	Manken, Wilhelm & Uhlmann, Otto	Presses for making work-pieces conically tapering in longitudinal direction	US2365482
342401	Nissen, Ulrich	Presses for making work-pieces conically tapering in longitudinal direction	US2392336
342900	Fickert, Hanns & Unterguggenberger, Hermann & Ehrenberg, Hermann	Copying models
343168	Sakurada, Ichiro & Lee, Shoki & Kawakami, Hirosi	Method of manufacturing synthetic fibres from polyvinyl alcohol
344455	Conradty, Ottmar	Insulated carbon body	US2394041
345220	Rutishauser, Georg	Method and apparatus for the production of curled threads from cellulose acetate	US2326174
346897	Morita, Juzo	Manufacturing male members of snaps
347559	Meyer, Johann	Conical belts
348991	Ferretti, Antonio	Processes for the manufacture of artificial textile fibres	US2338918
348993	Ferretti, Antonio	Processes for the manufacture of artificial textile fibres	US2338919
348994	Ferretti, Antonio	Processes for the manufacture of artificial textile fibres	US2338920
349256	Aschenbrenner, Gerhard & Wempe, Bernhard	Spinning method
352364	Dumont, Eugen	Process for the production of shaped structures from reversibly moldable synthetic resins	US2347036
354117	Thinius, Kurt	Mutual precipitation of polyamides and cellulose	US2347525
358465	Schlack, Paul	Manufacture of fibers and synthetic linear polycondensation products
359975	Westerkamp, Hugo	Method of producing sound band matrice	US2352052
360188	Diehl, Karl Ludwig	Process for the production of tightening plates
360776	Fink, Heinrich & Plepp, Gaston	Manufacture of artificial filaments and fibers from viscose	US2327516
361649	Voigt, Walter	Increasing the elasticity of textile fibres
362260	Egger, Ludwig & Ernst, Paul & Gruber, Wolfgang & Zoebelein, Hugo & Scheidemandel, Hans	Method and apparatus for producing fine hollow threads
362296	Martin, Hans & Franz, Walter	Key head
362460	Berg, Herbert & Doriat, Martin & Gruber, Wolfgang	Threads of high bending strength
363920	Arnold, Rudolf & Wesenfeld, Max	Multistage longitudinal covering machine
364354	Moller, Paul & Wilmanns, Gustav	Process of decreaseing the sensitiveness to water of formed materials from interpolyamides
368312	Hempel, Emil	Method and means for producing articles from a thermoplastic material	US2356585
368953	Harms, Jurenus	Producing threads and the like from viscose
369127	Kleine, Johannes	Process for the production of artificial filaments, fibers and foils	US2351345
369228	Meyer, Kurt & Lapp, Heinz	Light polarizing bodies and method of producing same
369752	Schweizer, Richard & Menger, Adolf	Pressed slabs of wooden material and process of manufacturing the same
371188	von Opel, Fritz	Method and apparatus for molding under pressure, particularly injection molding plastic material	US2374468
373140	Graumann, Erich & Zetzsche, Walther	Artificial fibers	US2340377
374597	Rinia, Herre	Optical element	US2437860
375092	Wehr, Wilhelm	Polyamide articles	US2350851
375537	Ubbelohde, Leo	Manufacture of artificial fibres, threads, bands, ribbons, horsehair, films and the like
378140	Hessen, Richard	Process for the production of moulding-mixtures l [In Queens U. Database, Class 260]	US2333786
378642	Holzmann, Hermann	Spinning nozzle for the production of artificial hollow threads	US2360680
378721	Bochmann, Otto	Spinning frame for the production of artificial silk in continuous operation
379672	de Kadt, George Stephan	Treatment of wet spun protein products	US2392582
379674	Thilenius, Gerhard	Die or pressure casting machines for plastic masses
382342	Wehr, Wilhelm	Polyamide articles
382773	Ferretti, Antonio	Process for manufacturing casein filaments
384011	Mazzoni, Lucien	Combs	US2349977
391198	Chapuis, Eugene Adrien	Manufacture of molded reinforced objects
391751	Rodenacker, Wolf	Melting apparatus	US2371916
391802	Custers, Jakob	Method of connecting parts made of thermoplastic artificial materials, preferably consisting of mixed polymerizates	US2387566
395688	Grundel, Frantisek	Manufacture of articles of plastic material having projecting pattern or ornamentation in the surface thereof	US2345112
399750	Herrmann, Otto & Wunderer, Anton & Bottger, Hans	Superpolyamide films	US2351208
400859	Derksen, Jan Cornelis	Process of moulding objects
405458	von Opel, Fritz	Method and apparatus for molding under pressure, particularly injection molding plastic material	US2374468
408346	Menger, Adolf & Bock, Eugen	Shaped bodies and process of preparing the same	US2337915
432515	Paulsen, Jean Felix	Elastic connecting members
521022	Lilienfeld, Leon	Manufacture of cellulose compounds
715003	Wulff, Carl & Dorrer, Eugen	Polymerized vinyl compounds

Class 19 - Textiles, fibre preparation

Serial Number	Inventor	Title	Patented
182910	Franz, Ehrhart	Yarn and method of making same	US2356574
330410	Duesberg, Hubert	Method of and arrangement for extracting metal bodies from webs of textile materials	US2416293
331471	Duesberg, Hubert	Carding machines with direct drive
351493	Kern, Rudolf	Method and apparatus for the loosening of matted fibrous materials	US2341623
359969	Antonelli, Leonida	Removing woody matter from the stem fibres of textile plants	US2359074
362480	Ishida, Yoshio	Method of manufacturing wool or silk-like fibres from the collagen such as fatty layers, tendons, etc. of animals
394669	Marzoli, Luigi	Pressure device for drawing cylinders for fly frames having three, four or more cylinders
394670	Marzoli, Luigi	Pressure hinged lever system for cylinders of sliver or lap drawing frames for use in spinning textile fibres of various kinds
397475	Tasso, Antonio	Automatic silk-titre regulating device	US2378595
410217	Henares, Hilarion G.	Method and apparatus for extracting fibers from fibrous husks	US2348813

Class 20 - Wooden buildings

Serial Number	Inventor	Title	Patented
185492	Franke, Friedrich Wilhelm	Materials comprising corrugated wood
235842	Sahlberg, Wilhelm	Wooden frame trusses	US2390180
327119	Malzer, Lorenz	Parquetry flooring
362468	Een, Johannes Brynjulvsen	Reinforce door of wood and/or insulation material	US2399666
367214	Benecke, Heinrich	Sound absorbing or attenuant arrangement for reverberant rooms	US2335728
382255	Bornemann, Otto	Transparent clear sight foil sheet materials
417671	Wolff, Hanns-Heinz	Sound absorbing structure	US2356640
428980	Couelle, Jacques	Procedure for stiffening all elements coupled of timber-work in light wood by employing of the torsion of wood on certain of these elements	US2414094
443629	Crouet, Marcel Francois	Compressed foliated wood	US2350729
450223	Couelle, Jacques	Board-joining process by osmotic plugs, more especially utilized in light-timber frame-work
450224	Couelle, Jacques	Process of rapid establishment of light construction by combination of standard panels with supporting frameworks

Class 21 - Preserving and sterilizing

Serial Number	Inventor	Title	Patented
322257	Carnauh, Borak	Disinfecting product and processes for its manufacture and application [In Queens U. Database, Class 167]	US2351924
342356	Muller, Richard	Process and to suitable apparatus for disinfection and for destruction of bacteria, respectively	US2394325
364400	Ricchiardi, Pier Carlo & Zillo, Enzo	Long-fiber light-weight timber	US2341653
367306	Schutz, Kurt	Applying chemicals to plants
390995	Blichfeldt-Petersen, Axel Christian	Wood impregnating plants
434266	Christensen, Henry Marinus	Process for sterilization of organic substances containing microorganisms, bacteria, fungi or spores

Class 22 - Metal founding

Serial Number	Inventor	Title	Patented
127067	Wagner, Karl Friedrich	Metal casting apparatus
162538	Roth, Walter & Reuleaux, Otto	Process for casting metal ingots and devices thereto
176880	Lesage, Alfred	Inside-lined light metal engine-cylinder and method of making same
308716	Ruppik, Herbert	Process for the uninterrupted casting of articles	US2363695
334087	Conradty, Ottmar	Carbon body and metal holder unit	US2388123
334093	Leuchs, Friedrich	Contact device
387531	Mayer, Ernest	Molds	US2369067
388131	Boucher, Jacques	Centrifugated tubular bodies and processes and apparatuses for their manufacture	US2344020
393919 ½	Garre, Bernward	Method for the production of compound cast bearing brasses by means of the plunging casting process
414207	Meier, Sr., Ernst	Method of applying bush metal to bushes
414208	Meier, Sr., Ernst	Method of applying a lining to machine elements
426244	Passelecq, Georges & Semenoff, Alexis	Molds and in particular to foundry cores and to their manufacture
436540	Passelecq, Georges	Molds and in particular to foundry cores and to their manufacture	US2368322
453655	Boissou, Pierre	Centrifugal castings
474321	Boucher, Jacques	Method for centrifugally casting thickwalled tubes
474770	Boissou, Pierre	Centrifugal castings

Class 23 - Chemistry

Serial Number	Inventor	Title	Patented
214146	Cathala, Joseph	Process for the manufacture of sulphur trioxide
249348	Weber, Reinhold	Methods and apparatus for determining combustible gases in gas mixtures	US2399965
255849	Suss, Heinrich	Method and means for removing oils and other extracts
259213	Ludke, Werner	Synthetic asbestos and process for making same
264995	Witkiewicz, Roman	Apparatus for performing endothermic catalytic reactions in the gas-phase	US2397899
266388	Kloepfer, Harry	Process for the production of carbon black
270689	Kusman, David	Process of manufacturing alkaline silicates in powder form
280215	Berlek, Josef	Process for the production of caustic burning magnesia	US2344387
292742	Beck, Walter & Walter, Hans & Bonath, Klaus	Process for chemical reactions in melts
293101	Nees, Hugo	Method of preparing sodium perborate of low bulk density	US2380779
295147	Jeremiassen, Finn	Treatment of solutions to obtain solid matter therefrom	US2375922
306071	Fauser, Giacomo	Processes for the manufacture of ammonium nitrate
310182	Seailles, Jean Charles	Process for extracting magnesia from water containing convertible magnesium salts, such as sea-water, etc.
322548	Sciacca, Franco	Extraction of vanadium and phosphorus from residues of the preparation of alumina according to the alkaline method
323570	Seailles, Jean Charles	Methods for solving raw aluminates of lime in water and eventually recovering alumina from such solutions	US2356626
323624	Jaubert, Georges Francois	Plant for the preparation of hydrogen under pressure	US2332915
324626	Meissner, Josef	Process for the production of alkaline azides
325811	Johnsen, Henry	Manufacture of nitrates of metals of the alkaline metal group
328165	Nielsen, Harald	Manufacture of base exchange material or the like
333370	Andress, Karl Rudolf & Wust, Karl	Process of preparing polyphosphates and polyphosphate mixtures
333775	Bayer, Josef	Purification of sulphur dioxide gases
339015	Kusman, David	Process of manufacturing sodium cyanide	US2365417
347040	Moschel, Wilhelm & Forst, Willi & Schmid, Walter	Process of producing mangesium oxide	US2351998
347565	Brandt, Richard	Method for the removal of carbonic oxide from gases or mixtures of gases containing sulphur compounds by a contact process with steam catalysis	US2338402
352420	Pfannmuller, Wilhelm & Reichart, Josef	Apparatus for carrying out catalytic gas reactions	US2345423
353130	Martin, Friedrich	Process for removing oxygen out of industrial gas-mixtures
355830	Gallo, Gino	Process for the dehydration and calcination of potash alum	US2369037
359350	Tiedemann, Hans	Decomposition of sodium aluminate liquor	US2380804
362376	Koppers, Heinrich	Recovery of sulphur from hydrogen sulfide or hydrogen sulfide containing gases
365238	Marullo, Gerlando	Process for extracting potassium and aluminum from a mixture of potassium and aluminium silicates
365412	Picconi, Carlo	Appliance for catalytic reactions
368458	Seailles, Jean Charles	Process for extracting magnesia from aqueous solutions containing convertible mangesium salts, such as sea-water, etc.
369402	Fauser, Giacomo	Process for extracting potassium aluminate from mixed potassium aluminium silicates
370863	Zintl, Eduard	Process of preparing anhydrous sodium-orthosilicate and sodium pyrosilicate	US2351385
374583	Boeke, Jan	Method and device for detecting traces of foreign gases, vapours or mists in the atmosphere	US2363478
375665	Pressel, Friedrich & Kretzshmar, Walter	Process for the production of alkali metal percarbonate
375666	Pressel, Friedrich & Kretzshmar, Walter	Process for the production of alkali metal percarbonates
379872	Ebner, Karl	Process for the decomposition of metal salts to form oxides
383338	Wendlandt, Rudolf & Hoffmann, Gerhard & Fuldner, Hans	Method and device for partial or complete azotizing of calcium carbide and carbide mixtures	US2352051
385193	Lell, Eugen	Method and device for regulating the operation of gas generators [In Queens U. Database, Class 48]
388276	Moeklebust, Olav & Ravnestad, Andreas Johan	Iron oxides and method of producing same [In Queens U. Database, Class 75]
389254	Wrigge, Friedrich Wilhelm & Ginsberg, Hans & Holder, Gerhard	Process for preparing alumina from aluminum sulfite
391007	Dyckerhoff, Walter & Wittekindt, Wilhelm	Producing alumina	US2351941
393258	Beck, Walter & Walter, Hans & Bonath, Klaus	Process for chemical reactions in melts
397105	Klein , Hans	Removing acetylene hydrocarbons from gases
397992	Stalmann, Georg Pieter Gerhard	Device for the continuous cleavage of fats, oils and similar substances	US2356628
398345	Koppers, Heinrich	Method of wet gas purification
398346	Koppers, Heinrich	Contrivance for the recovery of sulphur from gases containing hydrogen sulphide
399397	Foss, Antonius	Method for carrying out base exchanging processes
404503	Heinen, Josef	Manufacture of titanium dioxide	US2367118
414040	Isaachsen, Isak	Crystallizers
417204	Tiedemann, Hans	Decomposition of sodium aluminate liquor	US2356547
419788	de Bruijin, Hendrik & Plusje, Mathijs Hubertus Reinier Johannes	Process for the production of substantially anhydrous calciumnitrate	US2375898
422869	van Aken, Johannes Stephanus Antonius Joseph Maria	Production of ammonium sulfate	US2415772
426648	van Es, Adriaan Cornelis & Abrahams, Johan Piet	Processes for extracting aluminium from coal mine products
430168	de Kroes, Johannes	Method for the transmutation in the composition of matter
434440	Woog, Paul	Catalysis process with continuous regeneration of the catalyser
434621	Rudy, Hermann & Muller, Kurt	Process for the conversion of water-insoluble potassium salts of high-polymeric metaphosphoric acids into a water-soluble state.
434623	Watzel, Rudolf	Process for the production of nitrogen-phosphoric acid compounds	US2350850
442132	Verdeaux, Felix Annet Honore	Method of production of copper ammonide
456950	Miguet, Paul Louis Joseph & Perron, Marcel Paul	Electrothermic gas producer	US2447809
727832	Johnsen, Henry	Process for the production of salts by base-exchanging substances	US2344617

Class 24 - Buckles, buttons, clasps, etc.

Serial Number	Inventor	Title	Patented
319344	Boenecke, Alfred	Snap fasteners	US2368100
327513	Boenecke, Alfred	Flexible strip for producing slide clasp fasteners	US2370613
328113	Kohl, Hermann	Sliding clasp fasteners
359453	Stumpf, Thea	Pins for temporary fastening of buttons	US2370696
359454	Stumpf, Thea	Hold-fast appliances for holding various layers of thick materials together
411751	Siedner, Efim	Devices for clamping textiles, papers, and the like
416269	Gobin (dit Daude), Jean Emile Francois	Fasteners for detachably assembling two parts	US2387575
447499	von Opel, Fritz	Fastening devices	US2352045

Class 25 - Plastic blocks and earthenware

Serial Number	Inventor	Title	Patented
203137	Zdansky, Ewald	Manufacture of electrolyser cell frames
203714	Hoyer, Ewald	Method of producing armoured concrete
290985	Ehrenhaft, Viktor	Process for the manufacture of hollow bodies	US2335400
320199	Guerci, Giovanni	Manufacturing fibro-cement pipes	US2348433
358175	Avenhaus, Wilhelm	Method and apparatus for the production of ceramic shaped bodies, especially clay tiles
422459	Passelecq, Georges	Agglomerating mixtures of solid material and liquid

Class 26 - Textiles, cloth finishing

Serial Number	Inventor	Title	Patented
356883	te Strake, Lambertus	Fabric-simulating material	US2338386

Class 28 - Textiles

Serial Number	Inventor	Title	Patented
234900	Hubert, Emil & Rein, Herbert	Nets, ropes, sails and other articles for fishing and seafaring use
363046	de Ruyter, Michael & Neeb, Georg	Binders for use in the production of threads from glass fibers
373136	Wiggermann, Georg	Warping machine	US2356365
381856	Wendt, Bruno	Textile goods [In Queens U. Database, Class 106]
381952	Wiggermann, Georg	Warping machine	US2382760

Class 35 - Education

Serial Number	Inventor	Title	Patented
270788	Latour, Maurice	Instructive and demonstration apparatus or toy for the construction of various electric machines and devices	US2344438
322289	Grunberg, Wsevolode	Method of and means for instructing and training student operators	US2350351
360844	Maurer, Max	Testing and training device for two-ears sound locators
386191	Vignal, Gustave Damien	Films for the teaching of languages
401387	Gerstenberger, Albin	Aiming apparatus
418491	Routin, Joseph Louis	Process and devices for the use of the phonograph in teaching

Class 36 - Boots, shoes, and leggings

Serial Number	Inventor	Title	Patented
289028	Brandel, Serge & Perrot, Henri	Shoes and the like	US2326198
378807	Gelling, Paul	Soles for shoes and sandals
395495	Wehr, Wilhelm	Footwear	US2350852
417644	Lusztig, Sandor	Heels and bridges (articulations) made of rigid material for boots and shoes
446954	Perrot, Henri	Pressed metal sole for shoes and shoe embodying said sole
465944	Issaly, Raoul Marcel Laurent	Wooden soles for shoes	US2370963

Class 37 - Excavating

Serial Number	Inventor	Title	Patented
382443	von Hagen, Kurt	Devices for dredging gravel or the like	US2410765
393715	Lentz, Anton	Pusher mechanism for tractors - Mechanism for propping trailers against tractors	US2356600

Class 40 - Card, picture, and sign exhibiting

Serial Number	Inventor	Title	Patented
225586	Skaupy, Franz	Process for making filaments consisting of pure silicic acid	US2338463
275989	Kirchhelm, Andre Georges Charles	Process for manufacturing glass articles	US2348823
310291	Moller, Magdalin Christian Gleerup	Signs	US2376932
390216	Sauer, Hans	Polarizing filter and method of making the same

Class 41 - Ornamentation

Serial Number	Inventor	Title	Patented
329909	Nestelberger, Franz	Film printing screens and a method of manufacturing them [In Queens U. Database, Class 101]	US2335021
331888	Tagliabue, Giuseppe	Proceeding for superficial colouring decoration by means of colour transport and penetration into the pores of various bodies	US2350840
336461	Vurbs, Vaclav	Method of making sign-panels	US2338985
356190	Hausleiter, Fritz Hermann	Method for the production of printing plates, especially flat printing- and offset printing plates [In Queens U. Database, Class 101]	US2369567
366503	Morioka, Isao	Process for plastically reproducing objects	US2350796
378286	Schwimmer, Karoly Heins	Camouflage	US2349993
403392	Rott, Andre	Photo-mechanical printing process and printing material for carrying out the same
413906	Horii, Shinjiro	Stencil sheets

Class 42 - Firearms

Serial Number	Inventor	Title	Patented
253661	Gal, Alessandro	Fire arms	US2396564
257508	Kehne, Karl	Guns having sliding and exchangeable barrels	US2345127
257533	Schwarz, Johannes	Grip for fire-arms, especially pistols, and method for their production
285144	Rossmanith, Wolfgang	Automatic guns having sliding barrels	US2344109
300195	Koucky, Josef	Automatic firearms
304226	de Kiraly, Paul & Kucher, Jozsef	Breech mechanism for automatic firearms	US2348790
306568	Prola, Goffredo	Automatic gun
307807	Koucky, Josef	Automatic and semi-automatic arms	US2351976
308845	Revelli, Gino	Bolt closer for automatic guns	US2350821
308871	Revelli, Gino	Firing mechanism for automatic arms	US2356615
361184	Schmeisser, Hugo	Device for controlling the gas pressure in automatic blank cartridge firing in automatic guns	US2356538
371796	Altenburger, Ernst & Schweikle, Karl	Straight-line breech lock for automatic firearms
373181	Born, Woldemar	Gun barrel	US2345089
382429	Koucky, Josef	Breech device for firearms	US2356595

Class 44 - Fuel and igniting devices

Serial Number	Inventor	Title	Patented
152413	Schmid, Alfred	Heating process
335398	Orno-Ornfeldt, Eduard	Products and preparations for thickening hydrocarbons, particularly gasoline
362688	Schunck, Carl	Method for the production of a fire lighting means and fire lighting material made according to this method
364294	Zerbe, Carl	Treatment of acid sludge
382100	Passelecq, Georges & Semenoff, Alexis	Agglomerated bodies of carbonaceous material and processes for making the same
438045	Frejacques, Jean Leon Maurice	Fuel for motor vehicles	US2357184

Class 45 - Furniture

Serial Number	Inventor	Title	Patented
263038	Becker, Otto Alfred	Apparatus for storing and conveying card indexes or other suitable articles in containers or the like
273370	Becker, Otto Alfred	Apparatus for storing and conveying card index cards and other articles accommodated in containers
317991	Bertello, Enrico	Record filing cabinet or the like etc.
323734	Becker, Otto Alfred	Apparatus for storing and conveying of index cards or other suitable articles in containers, or the like
399921	Liesken, Auguste Hubert	Swing front face drawer for vertical filing cabinet	US2388922
421166	Ki Ku, Chain	Reading stands	US2354998

Class 46 - Amusement devices, toys

Serial Number	Inventor	Title	Patented
319792	Markes, Carl & Boheme, Gustav & Griessl, Rudolf	Toy building set of metal
353973	Horn, Ernst	Tracks for toy vehicles	US2350760
377378	Mittmann, Johannes	Figures, dolls, or other bodies and the method of producing same

Class 47 - Plant husbandry

Serial Number	Inventor	Title	Patented
251858	Friedmann, Giovanni	Method of fertilizing land
324426	Bonfiglioli, Enrico	Process of making ornamental figures	US2344076
340363	Lowenstein, Leo	Method of protecting plants against frost
369352	Amlong, Hans Ulrich	Method of treating seeds
382458	Nemeth, Bela	Seed cultivation	US2350801
443971	Kluis, Johan Hendrik	Rose	USPP707

Class 48 - Gas heating and illuminating

Serial Number	Inventor	Title	Patented
243050	Arnold, Robert	Method of converting liquid hydrocarbons into highly compressible dry gas
263042	Bazille, Cyrille Alfred Alexis	Regulating the operation of a gas producer	US2369522
285434	Weese, Ernst	Safety devices for gas conduits
303852	Szigeth, Gabor	Process for the production of a water gas particularly suitable for synthetic purposes
385193	Lell, Eugen	Method and device for regulating the operation of gas generators
400520	Maramba, Nicanor G.	Methods and apparatus for producing gaseous motor fuels
422552	Ussani D'Accadia, Eduardo	Gas producer by solid fuel, combined with a purifier, and suitable to feed gas motors, and especially auto motors	US2390058
434667	Poinsignon, Jean	Device for supplying a gaseous mixture to an internal combustion engine	US2352003
436281	Couelle, Jacques & Costin, Dimitri	Economical obtention of hydrogen and of oxygen by dissociation of water in order to realize industrially a gaseous fuel extremely rich in calories
459344	Schroter, Arnold	Method and device for filtering and purifying the gases of gas producers

Class 49 - Glass

Serial Number	Inventor	Title	Patented
113559 ½	Zotos, Georg	Method of and plant for melting refractory minerals in revolving-tube furnaces	US2358903
125892	Wempe, Bernhard	Method of producing perforated thin sheets of glass or metal
187733	De Tailly, Jacques Marie Darodes & Jafflin, Jules Albert	Wire glass
196776	Skaupy, Franz & Weissenberg, Gustav	Process and apparatus for the continuous spinning of filaments and ribbons from quartz and other refractory oxides
209150	Karl, Otto & von Bergkampf, Erich Schwarz	Glass-to-metal seals
225586	Skaupy, Franz & Weissenberg, Gustav	Process for making filaments consisting of pure silicic acid [In Queens U. Database, Class 40]	US2338463
245285	Yamamamoto, Hideo	Apparatus for manufacturing strainless glass sheets	US2422640
246223	Roirant, Emile	Automatic machine for the manufacture of bottles and like articles
268616	Vranken, Felix	Heating ovens, particularly those for hardening glass plates
275121	Weiner, Bernard	Method of producing insulating material from glass
275989	Kirchheim, Andre Georges Charles	Process for manufacturing glass articles [Not in Queens U. Database]	US2348823
288242	Kampfer, Adolf	Non-splintering laminated glass
303058	von Pazsiczky, Gedeon	Method of and apparatus for producing glass fibers	US2338473
314727	Quentin, Alberto	Systems and devices for tempering hollow glass articles	US2375944
333410	Boudin, Louis	Process and apparatus for the continuous production of corrugated glass sheets	US2382379
340441	Scharfnagel, Rudolf	Methods of sealing electric dischrage vessels	US2350829
375868	Bonnefoy-Cudraz, Emile Robert	Apparatuses for manfucturing hollow glass articles	US2405557
381303	Lohmann, Franz	Methods of manufacturing electron tubes	US2338381
382311	Wempe, Bernhard	Process and apparatus for making spinning nozzles [Producing holes in glass plates]	US2376742
383370	Rudolph, Karl	Hollow glass bodies and method of manufacturing the same	US2347614
401909	Long, Bernard	Methods of manufacturing sponge glass articles and the like
405411	Schrader, Jean Louis	Methods of tempering glass objects, particularly plate glass	US2553945
414756	Long, Bernhard	Processes and devices for welding glass to metal and articles obtained thereby
418602	Dichter, Jakob	Forming necks on glass containers
418603	Dichter, Jakob	Apparatus for shaping glass tubing
418604	Dichter, Jakob	Manufacture of ampoules
423106	Mickley, Erich	Method and apparatus for making seals	US2482119
430707	Hainke, Georg	Production of flat glass

Class 50 - Fluid-pressure regulators

Serial Number	Inventor	Title	Patented
293523	Krussmann, Adolf	Device for converting a controlling impulse into an alternating current impulse	US2350776

Class 51 - Abrading

Serial Number	Inventor	Title	Patented
223269	Zwick, Kurt	Work turning device for machine tools	US2335468
250446	Grocholl, Karl	Centrifuges for granular material for cleaning and scaling plants
363377	Stark, Louis	Device for sharpening razor blades
382051	Zwick, Kurt	Tool grinding machine	US2368342
395384	Bezborodko, David & Zucker, Charles	Combined machine for surface grinding and polishing glass and other materials	US2341524
420312	Fouquet, Eugene	Machines for manufacturing totation or revolution bodies
420313	Fouquet, Eugene	Grinding machines
422615	Ahnert, Max	Grinding machine	US2350710
425448	Beduneau, Emile Francois Louis	Semi-automatic machine intended for finishing the grooves of ball bearing rings	US2356499

Class 52 - Explosive, pyrotechnic and matches

Serial Number	Inventor	Title	Patented
322485	Dumontel, Ascanio	High-explosive
393137	Baron, Charles	Explosive and method of making the same
398401	Makay, Miklos	Process for the gelatinization of cellulose nitrate
398402	Makay, Miklos	Process for the production of guncotton gelatin suitable for being converted into guncotton devoid of solvent

Class 53 - Domestic cooking vessels

Serial Number	Inventor	Title	Patented
260412	Perlusz, Desider & Balazs, Ernest	Devices for extracting coffe and/or tea	US2345146
306443	Oey, Tjien To	Cooking-utensil
322224	De Matteis, Octave A.	Filter-machines for coffee
373226	Berger nee Keresztes, Susannah	Apparatus for the production, in a closed space, of gases, vapours or decoctions, especially a tea or coffee kettle	US2344386

Class 57 - Textiles, spinning, twisting, and twining

Serial Number	Inventor	Title	Patented
328795	Michel, Alfred	Methods and appartus for spinning kapok yarns

Class 58 - Horology

Serial Number	Inventor	Title	Patented
359791	Di Giuseppe, Renato	Chronometric electric curcuit	US2394294
361148	Junghans, Helmut	Alarm clock movements	US2338944
361149	Junghans, Helmut	Gear members
382857	Sickinger, Helmut	Watch case	US2344422
437434	Quebatte, Arthur & Seignol, Edouard	Electric clock mechanism	US2423117

Class 60 - Power Plants

Serial Number	Inventor	Title	Patented
165198	Leist, Karl	Gas turbines
215792	Neugebaurer, Franz & Franz, Anselm	Aircraft engines
217505	Jendrassik, George	Apparatus for gas turbines
240197	Schmidt, Paul	Master cylinder unit	US2338974
240907	Muller, Max Adolf	Combustion chamber for gas-flow engines	US2332866
257613	Martinka, Michael	Power engine plant	US2341638
261139	Waltenbauer, Hans	Pressure responsive system
266723	Salerni, Piero Mariano	Hydraullic power transmission apparatus
272652	Egersdorfer, Fritz	Hydraulic mechanism for producing a reciprocating motion	US2382701
280012	Taillerferre, Henri	Marine power plants [Power plants, in particular for the mechanical propulsion of immersed machines, and machines embodying said power plant]	US2356546
283101	Franz, Anselm & Decher, Siegfried	Heat exchange apparatus
287284	Schmidt, Johannes	Internal combustion engine
289763	Salerni, Piero Mariano	Hydraullic power transmission apparatus	US2371589
304834	Boulet, Georges	Aircraft power plants for high altitude flight	US2387560
316982	Fries, Gustav	Driving means for kinematograph film apparatus [In Queens U. Database, Class 121]
326816	D'Amelio, Luigi	Process and device for the utilisation of the heat contained in thermal or anyhow warm waters with the object of producing motive power
326817	D'Amelio, Luigi	Heat exchanger [Process and device for the utilisation of the heat lost by internal combustion engines]
330189	Giljam, Job Boudewijn	Combustion engines
330429	Boulet, Georges	Systems for cooling a fluid charged with thermic energy
337704	Franz, Anselm & Decher, Siegfried	Adjustable reaction nozzle	US2342262
344286	Gilli, Paul	Fireless locomotive with high accummulator pressure	US2367114
352145	Molly, Hans	Hydraulic starter	US2382437
352305	Krudewig, Johannes	Liquid change-speed gearing
353552	Schutte, Alfred	Casing for gas turbines	US2341664
366364	Wunsch, Guido & Weinkauff, Bruno & Sadowski, Walter & Kobischke, Herbert	Rudder machine for automatic pilots	US2438957
366840	Obtresal, Robert	Hydraulic drives	US2381923
367667	Anxionnaz, Rene & Imbert, Roger	Reaction propelling device with supercharged engine	US2356557
367702	Jendrassik, George	Process and appartus for rotary engines, mainly gas turbines	US2354213
368274	Maybach, Karl	Power plants in motor vehicles including an internal combustion engine with hydraulic gear
373038	Hurum, Fredrick	Internal combustion engines
378652	Alvizo, Cipriano C.	Auto-windling-aero machine
383877	Saito, Kiitiro	Variable speed hydraulic couplings	US2371922
391003	Bouffart, Maurice	Process and device for the production of gases at high pressure and motor fed with these gases
396779	Morton, Andre Adolphe	Device for the supply of hydraulic control apparatus for motor vehicles
397246	Pogioli, Vittorio	Valveless engine	US2390169
398686	Lang, Richard & von Fahland, Jurgen & Gros, Hermann	Hydraulic torque converters	US2384841
412884	Baumann, Ernst	Locomotive
428304	Hermitte, Louis Armand	Gas turbine motor plants	US2371889
428305	Hermitte, Louis Armand	Devices for starting gas turbine motor plants	US2365551
428655	Heller, Laszlo	Condensing spent steam
434985	Sedille, Marcel Henri Louis	System and devices for controlling thermal gas turbine motive units	US2372686
434986	Sedille, Marcel Henri Louis	Gas turbine installations operating on gaseous fuels	US2374239
459260	Jastrzebski, Wincenty	Fluid operated power transmitter	US2377886

Class 61 - Hydraulic and earth engineering

Serial Number	Inventor	Title	Patented
291610	Breitwieser, Heinrich	Device for navigating ships in locks, docks and so on	US2351917
302452	Frankignoul, Edgard	Method and device for constructing piles moulded in the ground
348940	Zweers, Bernardus Hermanus Henricus	Process and means for lowering a construction with a comparatively large base into the soil	US2382768
357993	Pfeiffer, Paul	Regulating device for pile-driver monkeys	US2392061
408902	Lipsky, Jean	Canal locks of dry-docks and other basins	US2356523
437449	Richou, Maxime Jean	Apparatus of the kind of the diving suits (High altitude flying suit) [In Queens U. Database, Class 128]

Class 62 - Refrigeration

Serial Number	Inventor	Title	Patented
140767	Le Rouge, Jean	Process for removing the substances condensed in cold accumulators in the cooling of gases	US2355660
303181	Hintze, Rudolf	Refigerating apparatus of the compression type
308027	Farago, Julius	Process and apparatus for refrigeration	US2378692
320181	Catalani, Giusto	Refrigerating apparatus	US2341595
327080	Pfaff, Peter & Benkert, Hanns	Temperature-responsive control mechanism, especially for refrigerating apparatus	US2356612
336692	Schirrmeister, Hans	Refrigerator equipped with a motor-driven refrigerating apparatus of the compression type	US2390182
337854	Hintze, Rudolf	Motor-driven refrigerating apparatus of the compresion type
339562	Bottcher, Rudolf	Thermal pump	US2368101
360291	Kiesskalt, Siegfried	Process of absorbing gases and vapors [Not in Queens U. Database]
367328	Wussow, Reinhard	Ice plant operating with compression and evaporation	US2364016
373012	Kiesskalt, Siegfried & Kruta, Erich & Quednau, Herbert & Patat, Franz	Process of adsorbing gases and vapors	US2349098
373486	Gruhn, Axel	Methods and machines for making an artificial ice product	US2467933
380596	Hintze, Rudolf	Refrigerating apparatus of the compression type	US2403220
389130	Hintze, Rudolf & Schinn, Rudolf	Refrigerators
403175	Kuhnel, Carl	Refrigerators
412875	Hintze, Rudolf	Refrigerating apparatus of the compresstion type

Class 64 - Machine elements, shafting and coupling

Serial Number	Inventor	Title	Patented
345249	Latscher-Latka, Eric	Turnspring
364466	Dornig, Mario	Elastic coupling device with rubber balls	US2356572
368023	Seib, Jakob	Joint	US2342305
383230	Baj, Alessandro & Storari, Sergio	Spring band coupling of a variable reduced length for internal combustion engines
383882	Matteucci, Raffaele	Yieldable couplings (Spring couplings comprising a plurality of couples of star-like disposed elastic foliated elements)	US2363257
405633	Buchhart, Josef	Shaft journal
415056	Piot, Marius	Device for clamping a member to a shaft	US2390168

Class 66 - Textiles, knitting

Serial Number	Inventor	Title	Patented
115412	Thierfelder, Hans & Dietz, Ernst & Richter, Max	Full fashioned hosiery
164119½	Nebel, Max	Knitting machines and method of operating same for knitting fabrics	US2379649
224546	Nebel, Max	Stockings
224550	Nebel, Max	Sinkers
241255	Nebel, Max	Flat knitting machine
246213	Meiwald, Franz	Machine for knitting cable coverings and the like
272667	Nebel, Max	Production of loop-push fabric	US2379852
289057	Maier, Karl	Non-ravelling knitted fabrics	US2374294
312595	Buck, Robert	Circular knitting machines	US2374920
345052	Welker, William	Flat knitting frames	US2363032
363234	Just, Jan & Just, Frantisek & David, Frantisek	Method for enabling knitted fabrics to be mechanically printed in ordinary textile printing machines	US2338945
367846	Worm, Oscar	Method of producing welts	US2379773
385164	Hilf, Rudolf & Lehner, Martin	Method of producing on a frame a knitted fabric highly elastic in both the longitudinal and the transverse directions, and to a device for performing the method
400724	Flamig, Fritz	Device for drawing goods from flat knitting machines	US2350885
401023	Morgenstern, Alfred	Needle bed for use in knitting machines	US2416938
407718	Dietrich, Herbert	Stockings	US2344030
418869	Nebel, Max	Flat knitting machine	US2345064
418871	Aurich, Paul Hans	Humidifiers	US2338394
425210	Worm, Oscar & Richter, Georg	Slackening the fabric rollers of flat knitting machines
459324	Fosse, Henriette & Palou, Jean & Lacombe, Louis	Hand knitting needle	US2378544

Class 67 - Illuminating burners 

Serial Number	Inventor	Title	Patented
314536	Jorg, Eugen	Photographic cameras
323200	Kuppenbender, Heinz & Eyth, Heinrich & Jorg, Eugen	Photographic cameras
374592	Van Liempt, Johannes Antonius Maria & Leidjens, Pieter	Flash lamp (Flash-light lamp)	US2351375

Class 68 - Textiles, fluid-treating apparatus

Serial Number	Inventor	Title	Patented
251638	Casse, Marcel	Machines for treating textile material
377698	Korte, Helmuth & Waibel, Wilhelm & Metzger, Johann	Method and apparatus for the chlorination of bast fibers	US2382726
440704	Rasmussen, Christian Oskar	Laundering machine	US2453727

Class 70 - Locks

Serial Number	Inventor	Title	Patented
414869	Pettersen, Gunnar Nimrod	Central lock systems

Class 71 - Chemistry, fertilizers

Serial Number	Inventor	Title	Patented
157223	Van Reesema, Nikolaas Hendrik Siewertsz	Soil improvers
281326	Ritter, Friedbert & Rodis, Franz & Weitendorf, Karl	Production of fertilisers	US2337498
289267	Schatzel, Bernhard	Process for the granulation of superphosphate
308170	Ritter, Friedbert & Rodis, Franz & Weitendorf, Karl	Process of preparing a fertilizer
310759	Ernesto, Alberizzi	Composition more particularly for agricultural use
313298	Foss, Antonius & Ravner, Oystein	Method for the utilization of potash-containing minerals as fertilizers
405274	van Aken, Johannes Stephanus Antonius Joseph Maria	Method for manufacturing an improved granular fertilizer containing ammonium nitrate and calcium carbonate

Class 72 - Masonry and concrete structures

Serial Number	Inventor	Title	Patented
238682	Kirchner, Ignatz Adolf	Monolithic floor construction	US2410505
253479½	Hoyer, Ewald	Method for reducing deformations of ferroconcrete bearing constructions
253935	Somigliana, Ugo	Glass panels
326780	Oelsner, Waldemar	Reinforced-concrete structures serving to limit vibratory oscillations or to prevent the same
398484	Gasenzer, Walter	Wall protecting structures
432392	Couelle, Jacques	Band with gussets to obtain by casting constructive jointing elements dividing the charges by dispersion of the thrusts [Structural member and method of making same]	US2356386
432393	Couelle, Jacques	Tubular elements used in dwelling constructions and similar [Tubular structural elements]	US2413690

Class 73 - Measuring and testing

Serial Number	Inventor	Title	Patented
226453	Brandt, Willy	Method of ascertaining the moisture content of doughy masses
251010	Piquerez, Emile	Apparatus for testing vehicles [Apparatus for testing and indicating the condition of vehicle brakes]	US2326168
260164	Piquerez, Emile	Fluid delivery meters	US2326169
268499	Boutillon, Henri	Volumetric liquid meters	US2465997
274851	Springer, Walter	Altimeters	US2398055
283196	Crapez, Jules	Psychrometers	US2326124
284328	Kohler, Fritz & Redehase, Alfred	Altimeter
291095	Brun, Oscar Constantin	Apparatus for measuring heat consumption	US2351920
297878	Baroni, Augusto	Anemometric antenna for aircraft formed with two oppositely disposed pitot heads
321103	Corset, Lucien Alfred Maurice	Remote reading electric indicator gauge [In Queens U. Database, Class 171]	US2353148
331408	Koeppe, Walter & Kodal, Gustav	Liquid operated electric control device	US2356593
336361	Rover, Martin	Liquid level gage (sic) - Remote indicating apparatus for measuring the depth of liquids in tanks	US2342696
342488	Martienssen, Oscar	Thermometer for deep well measurements
353148	Roudnicky, Rudolf	Rate-of-climb indicator or the like for aircraft	US2334885
362229	Rodanet, Charles Hilaire Henri	Device for exerting a constant returning torque on a rotatively movable unit	US2398448
362230	Rodanet, Charles Hilaire Henri	Automatic device for creating and maintaining in an enclosure a predetermined partial vacuum, and application of said device to the control of altimetric and barometric apparatus	US2422702
362231	Rodanet, Charles Hilaire Henri	Gauges indicating the level of a liquid of the gaseous bubbling type
362699	Wunsch, Guido	Devices responsive to the rate of flow through a conduit [In Queens U. Database, Class 137]
385174	Barsties, Wilhelm	Fluid level gauge	US2350712
390768	Rohn, Wilhelm	Instrument for measuring and indicating the intensity of a gas current	US2468896
395897	Reijnst, Maximillien Felix	Device for ascertaining the output or input of a reciprocating engine [In Queens U. Database, Class 74]	US2349560
419661	Brun, Oscar Constantin	Heat consumption meters

Class 74 - Machine elements and mechanisms

Serial Number	Inventor	Title	Patented
177226	Salomon, Francois Marie Michel Bernard	Oscillation damping means	US2361710
282309	Meyer, Gustav	Shift control mechanism for gear transmissions
285330	Buchhart, Josef	Automatic transmission	US2349937
285333	Kummich, Theodor	Operating arrangement, particularly for change-speed gearing for motor-vehicles	US2344096
287152	Rabl, Alfred	Speed drive for fast running machines, especially for cycle dynamo machines	US2348848
292126	de Falco, Mario	Change speed gear	US2338413
293631	Mulder, Cornelis Andries Heero	Epicyclic gear	US2349981
295316	Maybach, Karl & Lang, Richard	Power transmitting mechanism for motor vehicles
304651	Henke, Karl	Control mechanism for aircraft	US2338379
304835	Matteucci, Raffaele	Universal damper for the torsional vibrations of coaxially revolving shafts
309100	Robin, Leo & Van Roggen, Mathieu	Transmission devices	US2372226
312692	Wunsch, Guido & Kronenberger, Adam & Bauer, Karl	Angular rate cyroscope for automatic steering	US2345169
318000	Papello, Karl & Sander, Willy	Device for directing and calculating apparatus	US2384043
321805	Krussman, Adolf	Device for controlling precessional forces in gyroscopes	US2349287
323041	Westerkamp, Hugo	Drive for mechanical sound-film recording equipment
328132	Lang, Richard & Koch, Fritz	Power and speed transmissions for motor vehicles	US2352212
328935	Rybka, Benno	Gyroscopic devices	US2344112
330323	Nallinger, Fritz	Driving mechanism for two in opposite direction rotating air propellers by more than one motor
333561	Salomon, Francois Marie Michel Bernard	Oscillation reducing device	US2387775
334745	Kummich, Theodor	Change speed gears	US2356522
335081	Salomon, Francois Marie Michel Bernard	Oscillations reducing device	US2387776
339411	Finzi, Umberto	Gradual speed changing device	US2330821
344826	Kegresse, Adolphe	Automatic variable speed transmission	US2386217
345771	Berger, Arthur	Multi-throw crank shaft
356786	Lenart, Andor & Vamos, Joseph	Driving belt	US2338447
362426	Haseloff, Johann & Wessel, Erich	Steering column arrangements for airplanes	US2345120
364272	Callsen, Albert & Weiss, Adolf	Starter device for internal combustion engines	US2356503
365530	Schwarz, Richard & Zink, Herbert	Electronically driven gyroscope
366845	Specht, Otto	Pendulously mounted counterweights as vibration eliminators
366846	Specht, Otto	Crankshaft for internal combustion engines	US2378592
372870	Eberhard, Albert	Counterweight arrangement on crank drives	US2393029
373534	Rothe, Kurt & Eberhard, Albert	Devices for suppressing torsional oscillations
373705	Branda, Baptistin	Assembly of devices permitting a rational transmission of mechanical power, particularly fitted for motor-cars
374642	Nallinger, Fritz	Drive auxiliary apparatuses for aircraft motors
378638	Brissonnet, Pierre & Durand, Gaston Alfred	Transmissions	US2344078
378984	Soden-Fraunhofen, Alfred Graf von & Maier, Albert	Change speed gears with pairs of constantly meshing gear wheels
379065	Steffens, Eugen	Broadcast receiver apparatus for automatic press button tuning	US2335812
381604	Lauck, Friedrich	Gyro control apparatus
384016	Lang, Richard & Gros, Hermann & Hehle, Franz	Reversing gears for motor vehicles
387794	Herkert, Louis	Tubular remote control devices	US2372204
392246	Bach, Adolf	Gyroscopes
392983	Zanarini, Giuseppe	Mechanical energy transductor based on gyroscopic reaction
395897	Reijnst, Maximillien Felix	Device for ascertaining the output or input of a reciprocating engine [See Class 73 above]	US2349560
401472	Huber, Fritz	Drive mechanism for crawler tractors	US2332970
405540	Benz, Helmut & Kugel, Fritz	Combined hydro-mechanical gear	US2392520
414025	Edelmann, Reinhold	Infinately (sic) variable gear-drive
414145	Wilfert, Karl	Method viz. a device of controlling change speed gears
414407	Scheppmann, Wilhelm	Mechanical synchronizing devices
435446	Klein, Hermann	Starting device for internal combustion engine	US2344152
440865	Marquet, Georges	Deadcentreless crank gears	US2391725
444734	Waseige, Charles Raymond	Multi-drive gear box for accessories on board aircraft	US2454293
451094	Garnier, Paul	Change speed mechanism	US2609903
453705	Lapeyre, Gaston	Chain transmission more particular for cycles	US2368147
455908	Sarazin, Raoul Roland Raymond	Vibrations dampers	US2356435
465945	Aubert, Emile Henri	Change speed devices by means of a wheel of variable diameter	US2421368
467857	Berthiez, Charles William	Gear wheels for the drive of planing machines or the like
467858	Berthiez, Charles William	Devices for adjusting the feed or displacement of certain parts of machine-tools or the like
474319	Burnat, Henri Louis	Damping fly-wheels	US2403478

Class 75 - Mettalurgy

Serial Number	Inventor	Title	Patented
124858	Hessenbruch, Werner	Heat resisting alloys
171130	Rapatz, Franz & Pollack, Hans	High speed steel
223321	Kluger, Leo	Annealing boxes
272044	Bartscherer, Franz & Eichholz, Walter & Herzog, Eduard	Process for the production of steel from pig iron
279960	Arata, Vincenzo	A process for the production of pure iron or iron alloys
285805	Kluger, Leo	Alloy steel
285858	Haag, Johannes	Purification of pig iron	US2347557
288900	Bartscherer, Franz & Eichholz, Walter	Process for the production of first run metal or steel from steel pig iron or of a bessemmer pig iron containing phosphorus
303611	Burkhardt, Arthur & Knabe, Richard & Reiderer, Karl	Magnesium alloys
326724	de Rohden, Charles	Magnesium-base alloys containing metals of the cerium group of rare earth, substantially free from cerium
327066	Garre, Bernward	Light metal alloys have a preponderating percentage of aluminium
339389	Perrin, Rene	Purifying metals	US2356529
345176	Haag, Johannes	Method of producing chromiferous steels
352513	Osann, Bernhard	Method of and apparatus for operating shaft furnaces for roasting and the like	US2345067
355846	Perrin, Rene	Manufacture of low-carbon ferro-alloys
357822	Neumann, Hans & Kasten, Gotz-Werner	Method of manufacturing permanent magnets
360935	Schwier, Wilhelm	Reducing oxidic ores
369746	Sauerwald, Franz & Eisenreich, Hans & Holub, Ludwig	Magnesium base alloys
369748	Sauerwald, Franz & Eisenreich, Hans & Holub, Ludwig	Magnesium base alloy
369749	Sauerwald, Franz & Eisenreich, Hans & Holub, Ludwig	Magnesium base alloys
369824	Sauerwald, Franz & Eisenreich, Hans & Holub, Ludwig	Magnesium base alloys
377754	Venzi, Filippo & Arata, Vincenzo	Process for producing pure iron or iron alloys...
384127	Amati, Luigi	Process and oven for the production of metallic magnesium
387769	Lepp, Henry	Light metals and their alloys
388276	Moeklebust, Olav	Iron oxides and method of producing same	US2339793
391000	Eulenstein, Fritz & Krus, Adolf	Process and a device for producing iron or iron alloys	US2401146
402276	Lohse, Julius	Method of directly producing pig iron and steel	US2356524
409751	Guyard, Leon Jean Baptiste	Method for purifying bismuth	US2342733
416756	Reygagne, Leonce	Cast-irons and their manufacture	US2348849
420578	Canac, Louis Henri Francois & Segol, Emile Auguste Marie Antoine	Light and ultra-light alloys and the methods of their manufacture
428442	Kaschke, Kurt	Iron powder core [In Queens U. Database, Class 175]	US2385578
428794	Gadeau, Robert Andre	Process for the manufacture of metallic glucinum and of its alloys
429340	ter Berg, Jozef	Slag-forming material for an arc-welding rod and method for the manufacturing thereof

Class 76 - Metal tools and implements making

Serial Number	Inventor	Title	Patented
164337	Holzmann, Herman	Manufacture of spinning nozzles
368873	Seligmann, Roger Adolphe Leonard	Stamping die	US2390183
406948	Wenzel, Friedrich	Method of producing tools	US2338990

Class 78 - Metal forging and welding

Serial Number	Inventor	Title	Patented
191168	Singer, Fritz	Hot forging [In Queens U. Database, Class 29]
292740	Bernstorff, Hans & Allendorfer, Albert	Process for the manufacture of compact junctions of light metals and light metal alloys with heavy metals and heavy metal alloys
376385	Mortl, Hubert	Riveting apparatus	US2340552
418834	Mayer, Friedrich	Riveted joints	US2356526
428844	Von Opel, Fritz	Methods of producing articles by hot pressing or extruding and apparatus for their performance

Class 80 - Metal rolling

Serial Number	Inventor	Title	Patented
318112	Nedden, Gerhard zur & Cords, Erich	Method of rolling strip irons	US2361729
320472	Plagemann, Werner & Wemhoner, Wilhelm	Screw-threading machines	US2342817
358173	Dorn, Helmut	Tube rolling system
360152	Plagemann, Werner	Screw threading machines	US2422849
367509	Schutte, Albert	Device for making screw threads	US2376727
367878	Wemhoner, Wilhelm	Machine tools and the like	US2358269
371079	Ichikawa, Muneshige	Method and apparatus for sizing tubes
470621	Blain, Paul	Process for hot rolling very long thin strips
470630	Misset, Jean	Adjusting device for rolling-mills	US2369598

Class 81 - Tools

Serial Number	Inventor	Title	Patented
363378	Thienes, Friedrich Wilhelm	Combined nut wrench and free-running ratchet
375896	Aron, Julius & Lamm, Arthur	Double acting power-wrench for putting on and taking off nuts and the like	US2342783
390677	Haase, Georg	Parallel vise to be used with machine tools, etc.
439203	Parnet, Louis	Adjustable spanners	US2369072

Class 82 - Turning

Serial Number	Inventor	Title	Patented
314080	Deuring, Fritz Richard	Semi-automatic lathe
345336	Schumacher, Hermann	Controlling mechanism for lathes	US2338975
358561	Wilberz, Johannes	Device for actuating an automatic lathe, especially a spar bench
358562	Wilberz, Johannes	Lathe or similar machine tool and a method and device for putting the same together
362654	Gothe, Ernst	Multi-spindle automatic lathe with spindles horizontally revolvable in the spindle box
369503	Tutiya, Hidezo	Arrangements for electrically controlling operation of machine tools	US2360375
377252	Cito, Camille	Process for the manufacture of shaped metal products	US2382384
390058	Deuring, Fritz Richard	Arrangement of the transverse-supports in automatic and semi-automatic lathes	US2340513
395450	Cuttat, Georges Emile	Automatic slicing lathes
395451	Cuttat, Georges Emile	Lathes for metal jobs
395452	Cuttat, Georges Emile	Automatic lathes
436340	Hijmans, Ernst	Tool mountings	US2390148

Class 83 - Mills

Serial Number	Inventor	Title	Patented
233862	Bibolini, Aldo	Adjustable closed ciruit grinding process	US2338398
263381	Kaufmann, Erich	Process for the preparation of homogeneous mixed products
312133	Henricot, Jacques Fernand	Lining for tube mills or crushing mills containing balls or similar crushing bodies	US2367464
319802	Grandel, Felix & Imkamp, Wilhelm	A process for removing the skins or covering from seeds of castor oil beans
340800	Grandel, Felix & Imkamp, Wilhelm	Process for the degermination of seed
355397	Nyiri, Sandor	Arrangements for shelling and cleaning of granular products
362659	Muscari, Gugielmo	Process for the separation of valuable bran constituents
364826	Kiesskalt, Siegfried & Korinth, Erich	Oscillation tube mill	US2323544
367286	Landgraf, Otto	Process and apparatus for comminuting liquid substances	US2356599
372589	Bachmann, Dittmar	Device for disintegrating or homogenizing
377339	Cermak, Josef	Slag cooling and granulation device
388876	Landgraf, Otto	Process and apparatus for the comminution of fused materials
451014	Borsakovsky, Voldemar	Method of obtaining perfectly conservable integral meal	US2379677

Class 84 - Music

Serial Number	Inventor	Title	Patented
301264	Incagnoli, Venanzio	Sxophones, particularly for the production of high tones [High note producing system in saxophones]	US2382880
322619	Parenti, Rio	Accordions and similar musical instruments
341184	Laurenti, Alfredo	Electro-magnetic organ
382433	Scherer, Karl	Reed block for accordians
398349	Scherer, Karl	Chromatic harmonica	US2335453

Class 85 - Driven, headed, and screw threaded fastenings

Serial Number	Inventor	Title	Patented
190868	Chobert, Jacques Francois Gabriel	Tubular rivets and like hollow elements and to methods of fixing the same
241476	Schmidt, Martin & Gmohling, Karl	Nuts	US2371927
299160	Stiegelmeyer, Johannes	Dowels
344390	Schuttler, Paul	Screw-nut	US2382748
374464	Meisterhans, Josef	Nut to be fixed by an adhesive	US2344102
431625	Von Opel, Fritz	Fastening devices	US2373722

Class 86 - Ammunition and explosive charges

Serial Number	Inventor	Title	Patented
196790	Holek, Vaclav & Ondricek, Jan	Devices for filling and emptying cartridge belts	US2364530

Class 88 - Optics

Serial Number	Inventor	Title	Patented
122145	Storch, Paul	Film magazines for cinematograph cameras
254738	Vierling, Otto	Attachments for stereoscopic cameras
256012	Santoni, Ermenegildo	Auxillary aerophotogrammetric surveying apparatus, including the obtainment of photographs of the sun and enabling the realization of a novel process of aerotriangulation
269085	Rosner, Miklos	Backwards looking glass for automobiles and other vehicle
284005	Ruhland, Max	Lens hoods for photographic cameras
289326	Garbarini, Andre	Multiple divergence reflecting devices
292748	Hermsen, Wilhelmus & Delves, Francis Joseph	Light reflector and alloy for making the same
294277	Hansen, Gerhard	Micro-photometer	US2341098
296483	Kogel, Gustav	System of treating surfaces of reflectors and similar articles
306518	Fioroni, Mario	Process and device for obtaining the projection of luminous letters and drawings, particularly for the purpose of publicity and signalling
316983	Fries, Gustav	Apparatus for unwinding and winding up an endless film	US2338421
322151	Swarovski, Daniel	Signal device
322452	Seibert, Arthur	Ocular for microscopes
330963	Ulffers, Heinz	System for producing polarized light of predetermined vibratory condition	US2347582
334059	Tessier, Julien	Photographic enlargers	US2361667
335804	Moller, Rolf & Kosche, Erich	Projection screen	US2381614
340190	Ratti, Giuseppe	Spectacles and goggles frames
342708	Vierling, Otto & Ganswein, Paul	Polarising filter and method of making the same	US2344117
342801	Dahl, Joseph	Optical focussing systems	US2350151
348349	Eppenstein, Otto Martin Israel	Interpupillary distance gauge	US2361534
353931	Laubmann, Ernst	Production of stereoscopic motion pictures
354220	Straub, Harald W.	Method and device for measuring the thickness of light transmitting layers	US2338981
357992	Riszdorfer, Laszlo	Photoelectric exposure meters	US2378433
362540	Weissenberg, Gustav Josep	Process and apparatus to lower the reflection of optically active surfaces	US2356553
362652	Smejkal, Vilem	Bright optical system for colour photography	US2352026
374598	Rinia, Herre	Optical element	US2332930
374765	Rinia, Herre	Optical system	US2377268
377337	Seemann, Johannes	An arrangement of rotary shutters for stereophotogrammetric plotting	US2362030
386195	Lamarchia, Mario	Sound track of film
393488	Westerkamp, Hugo	Method of synchronizing the pictures and the sound of independently arranged picture- and needle-sound-reproduction devices	US2378611
395408	Hansen, Gerhard	Refractometer for turbid liquids and pulpous substances	US2387581
395494	Lumiere, Louis	Process and device for obtaining an appearance of relief in the projection of still or moving images
396380	Leitz, Ludwig	Exposure meters
398769	Riedel, Walter	Motion picture cameras	US2352008
399076	Haase, Max	Method for projecting stereophotographs by means of two pencils of light-rays of different color
399247	Riedel, Walter	Motion picture camera	US2340564
399283	Nerwin, Hubert	Sunshades	US2334883
399443	Jaconson, Johan Sam	Projection of images	US2348818
400876	Fukusima, Einosuke	Method for measuring the roughness of the metallic surface
401026	Cramwinckel, Arnaud & van Weenen, Franciscus Lambertus	Film apparatus	US2349941
415360	Carpentier, Pascal	Device for pointing in a variable altitude an optical apparatus
416126	Clave, Serge	Multiple focus lenses and method of making the same
417194	Oriol, Ramon	Stereoscopic motion picture device	US2365212
420886	Bolcskey, Erno	Motion Picture Projectors [In Queens U. Database, Class 271]
422173	Osorio, Pierre	Processes of filming, taking and photography and kinematographic projections rendering possible to obtain on an ordinary screen pictures in relief and natural colors
427956	Savoye, Francois	Equipments for the projection of stereoscopic views and films	US2421393
440103	Marette, Jacques Louis Joseph	Incandescent projection lamps with reflector
440418	Higonnet, Rene Alphonse & Chereau, Louis N.	Appartus for copying documents and the like	US2388264
470090	Bouwers, Albert	Telescope system	US2409186

Class 89 - Ordnance

Serial Number	Inventor	Title	Patented
166172	Skora, Felix	Railroad guns
176335	Vesely, Josef	Cartridge belts	US2365028
247699	Niemann, Rudolf	Spring recoil mechanisms for machine guns
256875	Zitkevic, Nicolas	Process for the strengthening of shelter covers
273401	Darche, Albert Alexandre Augustin	Guns and firearms
278498	Hertel, Heinrich	Ammunition container for aircraft	US2382715
286688	Ployer, Otokar	Air raid and like shelters [In Queens U. Database, Class 109]	US2369604
309569	Lanciani, Ettore	Armed rotating turrets for aircraft	US2357209
309858	Lampel, Walter & Horndlein, Richard	Firing devices	US2419841
313395	Haubroe, Werner Christian Lassen	Sighting device for air-target guns	US2441147
335122	de Gavardie, Pierre Henry Edmond Dufaur	Aeroplane provided with a firing turrent mounted on a universal joint
336671	Antona Traversi, Roberto	Gun-carriage
340618	Magni, Piero & Tonelli, Mario Leoniero	Loading apparatus for rapidly supplying aircrafts with ammunition
357514	Lanciani, Ettore	Aircraft back-turret cupola	US2350777
357976	Rossmanith, Wolfgang	Firing and carriage frame for large calibre shoulder rifles especially for tank rifles	US2376849
362261	Rossmanith, Wolfgang	Automatic shoulder fire-arm adapted to be used in a carriage	US2376726
382632	Linke, Johannes & Schneider, Arnold	Embrasure shutter for covering embrasure openings in the hood of combat places in airplanes	US2338950

Class 90 - Gear cutting, milling, and planing

Serial Number	Inventor	Title	Patented
222743	Muller, Eduard Felix	Electric feeler controls for machine tools	US2351626
240370	Capelle, Jean Joseph	Method and a machine for the progressive cutting by generation of involute teeth
322679	Panthoefer, Emil	Feed gears	US2345145
328824	Dewoitine, Emile Julien Eugene	Machines for milling the flanges of airplane wing spars	US2356571
335780	Volk, Paul	Tracer control for machine tools	US2378601
349194	Ehrenberg, Hermann	Feed apparatus for moving the feeler pin holder of copy milling machines
352035	Mikami, Shinkuro	Safety device for machine tools	US2340547
352036	Mikami, Shinkuro	Safety device for machine tools using photo-electric tubes	US2340548
392532	Frederichs, Georg Gert	Gear shaping machines	US2364065
394220	Schmid, Carl	Milling machines
401785	Volk, Paul	Tracer control for tool machines
415230	Berthiez, Charles William	Device making it possible to ensure the horizontally and locking of an overhanging arm moving vertically along a column	US2382392
416130	Antonelli, Leonida & Pavan, Osvaldo	System of heat milling for steel ingots
417826	Lipp, Rudolf Wilhelm	Cutting frame for dividing apparatus	US2396584
426200	Zwick, Kurt	Copying machine	US2371941
431768	Antonelli, Leonida & Pavan, Osvaldo	Milling machine for ingots	US2387553

Class 91 - Coating

Serial Number	Inventor	Title	Patented
92371	Vogele, Paul	Manufacture of materials comprising artificial resins
137892	Auwarter, Max	Production of metallic surface layers	US2422609
164523	Quehl, Kurt	Textile finishing process
181966	Tischer, Max	Method of forming a bright metallic deposit on the surface of objects	US2355186
206083	Ulbricht, Bernhard	Method of galvanizing metal tubes, sheets and the like
230336	Hutzenlaub, Eugen & Muller, Bernhard W.	Process of protecting inaccessible surfaces and composition therefor
232172	Maurer, Fritz & Laquay, Rudolf	Process for spreading rust preventing media upon the inside of gas holder bells and apparatus therefor	US2383402
233292	Schubert, Ernst & Pierer, Heinz	Process for the improvement of textiles
233455	Berghaus, Bernhard & Burkhardt, Wilhelm	Method of coating pistons
240422	Fabritz, Carl	Granular, light building substance	US2341605
261155	Vulliet-Durand, Gaston Hubert	Process for manufacturing homogenous plastic material by impregnation
285951	Hilligardt, Erich	Outer cover of rigid airships and method of manufacturing the same [In Queens U. Database, Class 117]
291348	Robitschek, Max	Method of homogenously combining base materials of all kinds with nitro varnish and color films
292154	Drechsel, Fritz	Treatment of yarns
298508	Hoekstra, Johannes & Rieter, Joseph Eugene Hubert	Insulated wire and method of making the same
304193	Springer, Berthold	Process and a device for impregnating condensers	US2410756
308380	Berger, Edwin & Schafer, Harald	Method of changing the physical and chemical properties of the surface of objects of silicious material [In Queens U. Database, Class 117]
333186	Geffcken, Walter & Berger, Edwin	Method for producing layers on solid objects [In Queens U. Database, Class 117]	US2366516
340600	Rober, Constantin Friedrich & Rothig, Ernst Gustav	Apparatus for supplying adhesive	US2344107
343178	St. Hilaire, Albert B.	Apparatus for manufacturing phonographic discs	US2332946
352642	Folco, Angelo Vincenzo	Treatment of glass-covered electric conductors	US2415683
358184	Kollmar, Max	Production of silver preparation [In Queens U. Database, Class 106]	US2351974
361011	Pense, Walter	Process of perparing coatings and the materials thus obtained [In Queens U. Database, Class 117]	US2341413
367225	Weissenberg, Gustav Joseph	Process for the production of protective layers on optically active surfaces [In Queens U. Database, Class 117]
367288	Dorn, Walter	Device for metallising	US2341603
392524	Woitscheck, Arno	Method of coating wax bands, bearing a mechanical sounds record, with graphite and a device for carrying out this method	US2350856
421397	Wolff, Julius	The manufacture of artificial sausage skins	US2350857
421398	Wolff, Julius	Device for the manufacture of artificial sausage skins
441151	Windschauer, Leib	Process for the preparation of textile threads	US2375971

Class 92 - Paper making and fiber liberation

Serial Number	Inventor	Title	Patented
122076	Gunther, Martin	Production of pure cellulose
159854	Palm, Hermann	Control of paper-making machinery
180047	Schroth, Adolf	Process for the manufacture of safety paper	US2378585
216306	Prufer, Heinrich	Manufacture of materials, boards, articles or compositions of a fibrous stock
217628	Berges, Andre	Apparatus for the uninterrupted cleaning and sifting, in particular of paper-making stuff	US2379411
219840	Basler, Hermann	Fibrous moulded bodies
237302	Rassow, Berthold	Process for removing printing ink from printed paper
247889	Jenke, Richard	Process and apparatus for treating or improving cellulose material
248628	Hess, Kurt & Ulmann, Max	Process for the production of bleachable straw half stuffs and straw pulps
254567	Basler, Hermann	Production of hard plates from vegetable fibre pulp
261133	Palazzo, Francesco Carlo	Process for obtaining cellulose from resinous pine woods
261154	Vulliet-Durand, Gaston Hubert	Plastic materials and the manufacturing process of same	US2348868
263577	Vulliet-Durand, Gaston Hubert	Artificial product imitating skins and leather and process for making the same [Not in Queens U. database]
281416	Miedler, Karl	Process for the preliminary treatment of wood
291499	Basler, Hermann	Heat conducting fibre board
292749	Albert, Janos	Processes for the production of asbestos cement slate possessing increased bending and impact strength
299888	Overbeck, Wilhelm	Processes of making high-grade cellulose
302919	Imset, Otto	Screen for paper stock and the like	US2351048
305403	Marocco, Secondo	Process for manufacturing sheets, felts ad mats of glass fibres by the wet process
312989	Thorsen, Kirsten Andreas	Device for the distribution of stock on the wire part of a papermaking machine	US2329799
314030	Salvaneschi, Pino	Process and apparatus for forming rapidly and vibro-compressing hollow bodies made out of a paste of cement and fibrous materials or by any similar paste	US2369608
323052	Holl, Fritz Wilhelm	Process for the production of acid-proof felts for paper making machines
326496	Zeehuisen, Jacob Johan	Process of treating fibrous materials, more particularly bast fibres	US2457856
326498	Seger, Heinz	Process of obtaining fibres from brushwood, in particular from spartium scoparium
330469	Opfermann, Erich	Refined cellulose and method for obtaining the same
332711	Troedsson, Ivan Penry	Circulation systems of pulp digesters	US2359172
337665	Basler, Hermann	Distributing devices
345177	Basler, Hermann	Method of producing hard fibre boards
351243	Vieweg, Karl	Process for the conversion of natural fibres
366764	Banning, Helmuth	Hollander for the continuous pounding of paper pulp, cellulose pulp or the like
367059	Opfermann, Erich	Refined cellulose and method for obtaining the same
386729	Aeldert, August	Beating engine	US2356555
402868	Mengoli, Augusto	Process for treating tomato plant stalks for the purpose of obtaining textile fibres and/or paper pulps
428674	Pomilio, Umberto	Process for the extraction of cellulosic fibres from vegetable material
429343	Carlander, Thor	Cellulose boiling
434616	Volz, Anton	Process for the prevention of resinous precipations in paper-making
443390	Fuld, Dirk Ehrlich	Art of decorating and preparing for spinning supple fibre of fibrous plants
474320	Deribere, Maurice Desire Emile	Substitutes for paper, cardboards and artificial leather and processes for the manufacture thereof

Class 93 - Paper manufactures

Serial Number	Inventor	Title	Patented
322198	Reiner, August & Rehm, Wilhelm	Device for enveloping and sealing flat articles, for example letters	US2421964
396114	Rambold, Adolf	Method and apparatus for making a bag with self-holding folds	US2349111

Class 94 - Roads and pavements

Serial Number	Inventor	Title	Patented
326823	Bedin, Jean	Ground facing
385177	Musall, Alexander	Device for dowelling transverse joints of concrete road pavements	US2349983
397308	Tiberghein, Marcel	Rubber-covered paving-blocks	US2342825

Class 95 - Photography

Serial Number	Inventor	Title	Patented
165091	Leiber, Ferdinand	Method and device for producing intensified colors or for intensifying the perception of colors	US2342152
268418	Konig, Paul & Konig, Rudolf	Method of and apparatus for the continuous production of photoprints	US2341625
280046	Weisz, Max	Apparatus for the production of photoprints
298228	Kuppenbender, Heinz & Eyth, Heinrich & Jorg, Eugen	Rollfilm cameras	US2335426
301266	Kuppenbender, Heinz & Jorg, Eugen & Nerwin, Hubert	Cameras
304702	Kuppenbender, Heinz	View finders
318113	Diamant-Eerde, Hans	Photographic solution
318344	Saint Genies, Anne Henri Jacques de Lassus	Devices for making exposures on lenticular films	US2352864
323472	Nerwin, Hubert	Rollfilm cameras
323576	Kuhne, Walther	Production of light sensitive photographic material	US2365416
338236	Vierling, Otto	Process of making photographs	US2335465
339812	Saint Genies, Anne Henri Jacques de Lassus	Colour films	US2351019
340691	Friebe, Hermann	Film feed mechanisms for photographic cameras	US2335402
340750	Kuppenbender, Heinz & Eyth, Heinrich & Jorg, Eugen	Photographic cameras	US2344409
341164	Nerwin, Hubert & Wunderlich, Karl	Rollfilm cameras	US2335439
344143	Rzymkowski, Johannes	Developing process	US2356536
359383	Rosos, Istvan	Filtering process
365903	Gehmlich, Bruno	Photographic shutters	US2387574
369451	Specht, Johann	Method and material for making colored photographic prints
371976	Bretthauser, Hermann	Device for adjusting objectives of different focal lengths in cameras	US2401134
372031	Nerwin, Hubert	Rollfilm cameras	US2351999
373640	Deckel, Hans C. & Maurer, Eduard & Stommer, Franz Xaver	Process for taking photographs	US2351932
373664	Lejeune, Franz	Method to manufacture coloured pictures, especially the yellow part-pictures in the colourphotography or colour-cinematography respectively [Not in Queens U. database]
375036	Nagel, August	Film feed lock and shutter tensioning mechanism for cameras	US2364466
377404	Lierg, Friedrich	Process to manufacture light-sensitive, photographical material
383535	Kuppenbender, Heinz	Photographic cameras	US2351978
384199	Schade, Karl Werner	Art of reproduction [Photographic justifying apparatus]	US2356620
387974	Dippel, Cornelis Johannes & Keuning, Klaas Jannes & Verkindern, Honore Joseph Jules & van Hoestenberghe, Rene Laurent Henri	Copyfilms for lenticular sounds tracks	US2380585
389222	Verkinderen, Honore & Vankeirsbilck, Norbert	Colour couplers for photographic colour development	US2380809
394217	Priesemann, Wilhelm	Photographic cameras	US2375344
395290	Bruylants, Pierre & Merckx, Philibert Leopold Jozef Raymond	Color couplers for color development	US2371925
395422	Schade, Arthur & Horn, Josef	Automatic photoprinting device [Not in Queens U. database]
397730	Kremp, Rudolf Alfred	Automatic working up of photographic papers and films	US2338442
402643	Wagner, Adam	Photographic focal plane shutters
407802	Zollinger, Ernst	Paper films conveyor	US2342780
497803	Zollinger, Ernst	Supplying water to photographic machines
416732	Kallusch, Camillo	Photographic roll film cameras	US2395828
418502	Stasiw, Ostap	Light sensitive systems and processes of making the same
431266	Steube, Fritz	Production of sound records	US2352032
431269	Schneider, Wilhelm & Senger, Norbert	Process for increasing the transparency difference of sound records in multi-layer materials	US2341508
438566	Schneider, Wilhelm & Frohlich, Alfred, & Neugebauer, Gustav	Production of color photographic images	US2376822
444353	Specht, Johann	Photographic positive material
444354	Specht, Johann	Filter-screen

Class 97 - Plows

Serial Number	Inventor	Title	Patented
399875	Mohl, Torben	Plough share	US2471164

Class 98 - Ventilation

Serial Number	Inventor	Title	Patented
242526	Komenda, Erwin	Vehicle body construction	US2388419
360856	Koweindl, Karl	Work bench for welding jobs and the like	US2341628

Class 99 - Food and beverages

Serial Number	Inventor	Title	Patented
159323	Petersen, Boerge	Dispersions	US2422633
176356	Friedel, Georg	Process of ensuring normal curdling of milk and normal acidification of milk, cream, curd and cheese	US2385569
184967	Schou, Herbert	Plastic dispersions
213933	Kuhn, Alfred	Process for the production of stable storable raw food
229716	Falticzek, Franz Siegfried	Method for preventing the disagreeable odor occuring in the cooking of sea fish
245782	Petersen, Jorgen	Production of grits or groats
254739	Volpertas, Zelmanas	Process for reducing vegetables containing starch to a dry powder
257240	Kremers, Karl	Process for separating albuminous products from milk good for beating and baking	US2349969
257717	Groen, Martinus Gerardus	Method of producing food stuffs
262567	Percheron, Maurice	Process of artificial digestion of albuminoid and fatty substances	US2350811
270845	Herlow, Anders	Emulsifiers and the production of emulsions
273520	Bumm, Erwin	Process for the production of yeast preparations
274000	Kremers, Karl	Egg yolk-like preparation
285437	Maltha, Pieter Reinier Antonius	Process for the manufacture of an improving agent for the baking quality of flour
296136	Shirokisawa, Shigeru	Method for preservation of solid food
296157	Herlow, Anders	Edible ice, and the production thereof
307337	Nyrop, Johan Ernst	Process for the production of gluten powder
308447	Krause, Georg Alexander	Process of savouring and flavouring
316681	Boinot, Firmin	Process for the treatment of worts obtained from amylaceous materials
319354	Bruhn, Richard & Buscher, Friedrich	Process of making bread
321084	Griesbeck, Hans	Process for the impregnation of milk beverages with cabonic acid with subsequent draw-off under counter-pressure into retailing vessels [Manufacture and bottling of carbonated milk beverages]	US2394303
327736	Waldschmidt, Ernst & Bayer, Anton	Process for improving the baking quality of flour	US2356635
332396	Sklarz, Waldemar	Process of preparing pasty highly active cellulose containing masses peptisized by vegetable colloids
332583	Dombach, Johann Georg Ferdinand	Cereal product and process for obtaining same
334978	Rugamer, Andreas & Kunstmann, Ernst	Producing a pulverous substitute for the white of an egg
336292	Heisler, August & Kuhn, Alfred	Method for preparing a therapeutically efficacious product from foodstuffs and articles of consumption capable of being roasted
339827	Jorgensen, Holger	Preserves or canned foods and the production thereof
352622	Lizeray, Ernst Leon Victor Emile	Method and apparatus for the fermentationless conservation of fruit-, grape-and greens-juices	US2361695
358093	Bargeboer, Adolf	Foodstuffs-preserving in bottles, tins or the like	US2356498
360503	Lux, Fritz & Dietrich, Walther	Enriching beer with vitamins
362659	Muscari, Gugielmo	Process for the separation of valuable bran constituents [In Queens U. Database, Class 83]
369359	Doms, Jules	Processes for sterilizing milk and milk products
373692	Petrelli, Wilhelm	Method and apparatus to freeze fruit, vegetables, and such like
376698	Crespi, Silvio Benigno	Process for the treatment of milk and other alimentary and especially globular liquids, to improve their preservation and render them more easily digestible, apparatus and product relative to the same	US2455235
386189	Nyrop, Johan Ernst	Method of preparing cocoa and chocolate products	US2348837
389746	von Viditz, Friedrich	Method of producing bakers ware by means of the fermentation of yeast dough	US2352046
390422	Reerink, Engbert Harmen & Boeke, Jan & Stevens, Willem	Method of preparing valuable materials with the aid of invertebrates
390847	Ruther, Anton	Red pepper surrogate
394221	Moskovits, Balint	Process for the manufacture of dry vegetable products	US2341152
395359½	Hendrikx, Michel & Slootmaekers, Rene	Food composition
397867	Moller, Fredrik Andre	Nutrient materials
404619	den Herder, Eibert	Preserved foodstuffs
421393	Wolff, Julius	Method of improving artificial sausage skins
439293	Gernow, Aage	Method of preserving vegetables, fruits, and similar vegetable food by drying and briquetting	US2351950

Class 100 - Presses

Serial Number	Inventor	Title	Patented
200282	Schneider, Adolf & Ungethuem, Ewald	Toggle lever press	US2387041
387735	Pizzi, Carlo	Method of binding straw fodder and the like sheaves [Method of preparing bales]	US2338456
397971	Yokogawa, Shigeto	Hydraulic press
463696	Monier, Marius Adrien	Hydraulic presses	US2350795
469105	Marchand, Jean Joseph Martin Lambert	Bundle tying machine	US2443470

Class 101 - Printing

Serial Number	Inventor	Title	Patented
226467	Aurbach, Kurt	Printing mechanisms for bookkeeping machines
254525	Maul, Michael	Printing device
310443	Krell, Joseph	Address printing machine	US2394312
312962	Koreska, Robert	Printing machine with rotatable stencils and automatic ink supply	US2341627
329909	Nestelberger, Franz	Film printing screens and a method of manufacturing them	US2335021
356190	Hausleiter, Fritz Hermann	Method for the production of printing plates, especially flat printing and offset printing plates	US2369567
373664	Lejeunne, Franz	Method to manufacture coloured pictures, especially the yellow part-pictures in the colour photography or colour-cinematography respectively
383059	Fries, Gustav	Copying sound events taking in amplitude records	US2342464
385581	Sonnino, Bruno	Process and device for printing fabrics of all kind	US2371930
399913	Rose, Richard	Address printing plate

Class 102 - Ammunition and explosive devices

Serial Number	Inventor	Title	Patented
159143	Zwerina, Rudolf	Rocket propelled bodies
249225	Olmo, Enrico	Devices for the self-mooring of mines and buoys
250209	Janecek, Frantisek & Janecek, Frantisek Karel	Armour piercing projectiles
254521	Thiebault, Antonine	Aquatic torch or light buoy	US2331439
276093	Schlumberger, Marcel	Projectile for perforating bore hole casings
285850	Borracci, Pasquale	Equipment for subaqueous arms destined to bring about the firing of same when traversed by a galvanic contact current	US2344483
286279	Wauters, Jean	Illuminating shells	US2359814
295135	Reinecken, Walter	Armour-piercing projectiles
315074	Tricou, Jacques	Munition shells of organic materials and processes for manufacturing same
323985	del Prato, Cesare	Percussion fuze for artillery
336019	de Garkovenko, Wladimir	Concentrating device for cartridges and method of construction thereof
340193	Lambeck, Adriaan Jan Jurriaan	Cartridge case and method of making same	US2349970
346638	del Prato, Cesare	Percussion cap safety device for percussion fuses	US2360043
346639	Prato, Cesare del	Percussion fuse for riffled artilleries	US2359752
357504	Weiss, Ernst & Strickstrock, Hans	Spring mechanism for the release of a firing pin or similar movable part	US2369626
377309	Jona, Alberto	Means for keeping ammunitions sustained in the air
384215	de Hertelendy, Andor	Aerial mine	US2342793
387324	Junghaus, Helmut	Time safety device for direct action percussion	US2380764
390242	Long, Bernard	Projectiles particularly intended for small calibre fire-arms of very flat firing
403648	Schlumberger, Marcel	Cartridges	US2419371

Class 103 - Pumps

Serial Number	Inventor	Title	Patented
239352	Sturm, Erwin	Hydraulic power transmission unit
249805	Molly, Hans	Hydraulically operating transmitting devices of the piston-type	US2445232
265877	Salerni, Piero Mariano	Centrifugal pumps or the like	US2371588
309103	Vanni, Pier Giorgio	Air carburation system
335386	Mercier, Jean	Pumps	US2392543
339025	Guichard, Louis	Diaphragm pumps for feeding fuel to explosion engines
341835	Falasconi, Alberto	Press operating continuously for mortar, concrete and the like [Hydraulic continuous press for concrete and the like]	US2349150
344512	Sobek, Paul	Driving device for rotary piston machines	US2394337
352146	Molly, Hans	Axial piston pump	US2353917
352147	Molly, Hans	Pump, more particularly an axial piston pump with adjustable stroke	US2353745
356697	Hell, Fritz	Circulating pump for pasty masses especially for concrete	US2338112
356818	Links, Heinz & Meiswinkel, Samuel	Regulating device, specially for fuel injection pumps of internal combustion engines
358109	Links, Heinz	Tappett guide, specially for plunger pumps
365724	Neidl, Georg	Pneumatic device for raising and conveying semi-solids	US2347213
390902	Muller, Helmut & Pischinger, Anton	Fuel injection pump for internal combustion engines	US2410517
417719	Reichsfeld, Paul	Valve gear for piston engines or machines
420409	Schmitt, Carl	Pump structure
429040	Egersdorfer, Fritz	Gear pumps	US2382701
433808	Muller, Geza Walter	Gear pumps	US2460649
437428	Decourtis, Paul	Piston and cylinder systems	US2356511

Class 104 - Railways

Serial Number	Inventor	Title	Patented
348896	Dauphin, Andre Lucien	Electromagnetic transport device

Class 105 - Railway rolling stock

Serial Number	Inventor	Title	Patented
316577	Fuchs, Rudolph	Vehicle moving on rails
338670	Goy, Herbert	Gangway connection between two vehicles coupled to each other, particularly flexible gangway-bellows for railway carriages	US2344351
368540	Maybach, Karl	Transmissions for motor vehicles	US2337910

Class 106 - Plastic compositions

Serial Number	Inventor	Title	Patented
176066	Tell, Walter	Method of and apparatus for converting colloidal masses into dried power form [Method for converting colloidal masses into dried powder form]
191000	Ferretti, Antonio	Manufacture of artificial textile fibres	US2338915
203679	Haseke, Gustav Adolf	Material for structural parts, and parts made therefrom
235108	Diterichs, Wladimir	Manufacture of synthetic mineral products	US2455358
240418	Fabritz, Carl	Porous building element
245735	Horn, Robert	Bituminous composition
248646	Bille, Leon Joseph	Cement and asbestos base mixtures used as plaster work covering layers or walls
262232	Penners, Johannes Hubertus Casparus	Method for preparing non-inflammable paints, lac-varnishes
263577	Vuillet-Durand, Gaston Hubert	Artificial product imitating skins and leather and process of making the same
264072	Ephraim, Ludwig & Papsdorm, Erich	Plaster-like materials for for application to walls and like surfaces
265863	Mauch, Karl & Pauer, Othmar	Process for treating bituminous substances	US2348832
269236	Klingler, Emil & Schonherr, Curt & Schmidt, Heinz & Gantzhorn, Friedrich	Ceramic goods
270158	Dietz, Karl & van Thiel, Heinrich	Highly refractory mortars, tamping material and material for repair and coating and a process of and cement powders for preparing them
275566	Paquet, Maxime & Ourisson, Jacques	Opaquing agents mainly comprising zirconia and process for preparing same
283225	Schmidl, Bruno	Dental cement composition
284099	Steinbock, Hans	Glass compositions	US2335463
301323	Rath, Werner	Electrical insulating body	US2432250
305404	Hirsch, Rudolf Anton	Process for sizing of fibrous materials
306501	Long, Bernard	Manufacture of multicellular glass	US2337672
324184	Diehl, Heinrich	Ceramic coloring materials and process of preparing them
325908	Huttemann, Erik	Gas-concrete mass and method for its production
332850	Meijer, Hendrik Willem	Adhesives
333593	Claessens, Albert Francois Xavier Ferdinand Alphonse	Composite paint and the method of manufacturing the same
334095	Doetsch, Ernst	Friction material
334902	Jaruschka, Hans	Mortar-like construction material
335627	Paquet, Maxime	Manufacture of enamels
340837	Grandel, Felix	Process of obtaining cold glue and caster oil from castor beans
342112	Stenvik, Kristoffer Johannes	Highly refractory building material and method of making the same
345372	Heimsoeth, Werner & Weinig, Robert	Enamels	US2337103
350065	Loeffler, Johannes	Process for the production of cadmium red	US2351985
351640	Dyckerhoff, Walter & Wittekindt, Wilelm	Hydraulic cement
353386	Hecht, Otto & Gassenmeier, Ernst	Cellulose solutions and a process of preparing such solutions	US2339012
353906	Goldschmidt, Victor Moritz	Bonded refractories and method of making the same	US2335407
356564	De Blasio, Guido & Marni, Giovanni	Process for the manufacture of a linoleum-like product by employing substances extracted from tomato skins
358067	Herriger, Felix	Sealing compounds
358182	Kerstan, Walter	Process for the production of white opaque enamels	US2338439
358184	Kollmar, Max	Production of silver preparation	US2351974
360204	Witzenmann, Herbert	Process for the production of masses and shaped pieces possessing high electric, chemical, mechanical and thermic strength
362656	Krause, Otto & Schiedeck, Max	Method of producing high fire-proof materials
365650	Ulrich, Heinrich & Ploetz, Ernst, & Ferrares, Oskar	Road constructional materials	US2351241
368408	Diehl, Heinrich	Process for the production of chromium containing coloring agents for glazes, enamels and the like
369351	Hannot, Franciscus Gommaris	Frost resistant micro-porous product	US2351961
369880	Kerstan, Walter	Process for the production of boron free enamels, glazes and the like
373185	Wendt, Bruno	Carbohydrate solutions	US2376743
373797	Gareis, Fritz	Process for preparing ceramic masses	US2350749
375680	Diether, Wilhelm	Process for the production of lead and boron free glazes	US2335395
380605	Dietz, Karl	Process of preparing cement powders and acid-proof mortars	US2425976
380632	Orthner, Ludwig & Balle, Gerhard, & Schild, Heinz & Schurmann, Max-Otto, & Brodersen, Karl & Quaedvlieg, Matthias	Manufacture of improved fibrous materials and the materials thus obtained	US2471039
381191	Schneider, Josef	Process for the production of porous bodies	US2371928
381856	Wendt, Bruno	Textile goods
382101	Passelecq, Georges & Semenoff, Alexis	Refractory products
386770	Bestian, Herbert	Process of improving casein fibers and the material thus obtained [In Queens U. Database, Class 8]
387106	Stitz, Fritz	Process for the preparation of six membered N-heterocyclic compounds from acrolein or its homologues and ammonia [In Queens U. Database, Class 260]
387359	Klinger, Emil	Method for the production of ceramic goods
391006	Dyckerhoff, Walterr & Wittekindt, Wilelm	Latently hydraulic binder
395364	Berger, Edwin & Freundel, Otto	Method for producing optical glasses
396355	Letters, Carl	Process of consolidating or waterpoofing mortar
398421	Steinbock, Hans	Binders for glass fiber threads	US2371933
398422	Steinbock, Hans	Binders for glass fiber threads
401522	Schneider, Josef	Process for the production of porous material
414866	Long, Bernard	Methods eliminating the coloration of glass obtained by electric melting	US2396585
423037	Kohl, Hans	Decolorizing and refining agent for glass
426245	Passelecq, Georges & Semenoff, Alexis	Manufacture of molded products
436541	Passelecq, Georges	Manufacture of molded products
449538	Levy, Georges	Process for the preparation of agglomerates
472428	Rheinberger, Eberhard	Process of manufacturing a composition from waste liquor of cellulose	US2400053

Class 107 - Bread, pastry, and confection making

Serial Number	Inventor	Title	Patented
352165	Aasted, Kal Christian Sophus	Casting apparatus for use in machines for casting chocolate and the like	US2340501

Class 108 - Roofs

Serial Number	Inventor	Title	Patented
407663	Chelazzi, Paul C.	Buildings

Class 110 - Furnaces

Serial Number	Inventor	Title	Patented
248047	van Rijswijk, Jacobus Nicolaas	Furnances and stoking installations therefor
292743	Rohrbach, Hans	Method for operating dust fuelled furnances
337713	Wakabayashi, Kotaro	Methods for complete combustion of fuel in boilers and arrangements therefor
345866	Jacobsen, Jorgen Heige	Electromotor-driven mechanical stokers	US2356590

Class 111 - Planting

Serial Number	Inventor	Title	Patented
254631	De Visart, Enrico	Regulating roller for machines sowing in rows

Class 112 - Sewing machines

Serial Number	Inventor	Title	Patented
293903	Lutz, Frederick	Edge ornamentation for fabrics and in methods and machines for producing it [Machines for producing edge ornamentation for fabrics]	US2354215
299222	Mohn, Otto & Flugge, Willy	Method and means for automatic blank chain stitching [Automatic blank chain stitcher]
311428	Sommer, Ernst	Apparatus for the automatic quilting of articles of material especially collars
331044	Dittrich, Walter Hugo	Method and apparatus for the uniform treating of curve-like extending edges or faces of workpieces [Apparatus for moving tool means in an irregular path]	US2345104
333312	Bastard, Georges & Huguet, Gaston	Sewing machine and needle
333562	Lutz, Frederick	Edge ornamentation for fabrics	US2354215
422672	Beyer, Werner Kurt Rudolf	Sewing machines	US2378534

Class 113 - Sheet metal ware making

Serial Number	Inventor	Title	Patented
188829	Schafer, Kurt	Vehicle bodies
270210	Holst, Gilles & Hoekstra, Johannes & de Boer, Jan Hendrik & van Lin, Oswaldus Anthonius Jacobus	Electrical connection and method of making same
276257	Barwich, Heinz	Method of producing metallic coatings	US2397400
340187	Braun, Matthaus	Laminated tubes [In Queens U. Database, Class 260]
362519½	Schmitt, Wilhelm	Presses
366470	Kammerling, Gunter	Method and device for manufacturing diaphrams
380991	Burstyn, Walther	Getter pellet box - Getter pellet box
435234	Biginelli, Oreste Flavio Alfred	Method and machine for constricting a tube by means of a revolving die

Class 114 - Ships

Serial Number	Inventor	Title	Patented
132695	Hort, Hermann	Method and advoces for varying the stability of a ship
236335	Varni, Alfredo	Floating breakwater for refraining the wave motion of water
258310	Aas, Bjarne	Method for the cutting of the bevel on hull planks in carvel built vessels [In Queens U. Database, Class 13]	US2437236
268421	Tietjens, Oskar	Self stabilizing boats or other floating bodies
361134	Bessire, Jean Jacques	Escape boat from submarines	US2348777
361463	von den Steinen, Carl	Device for varying the stability of marine craft	US2352044
369630	Sebestyen, Laszlo	Anti-oscillation suspension for beds and the like	US2352024
378096	Modugno, Francesco	Automatic control of the circulating pump of condensers normally working with natural water circulation for propelling apparatus [In Queens U. Database, Class 257]	US2415106
383215	Klindwort, Ernst	Ship form
386560	Herbline, Celestin Leon	Smoke producing means	US2369568
393434	Lamberti, Francesco	Life-saving and exploring device for submerged vessels
476022	Patin, Albert	Electric apparatus forming parts of indicating, measuring, regulating and steering systems

Class 115 - Marine propulsion

Serial Number	Inventor	Title	Patented
346649	Croff, Aldo	Nautical device with circular floats rotating and running upon the surface of the water
433077	Farkas, Kalman	Boat	US2369034

Class 116 - Signals and indicators

Serial Number	Inventor	Title	Patented
285810	Nothe, Erich & Siepke, Otto	Indicating means, and more particularly to means for indicating the number of rounds of ammunition fired from or available to a gun [Indicating counter]
285861	Schwarz, Joseph	Devices for the release of a warning signal by one vehicle to another
363141	Reuss, Rudolf	Photographic cameras
365646	Orlich, Peter	Echo sounding device	US2407175

Class 117 - Coating processes and miscellaneous products

Serial Number	Inventor	Title	Patented
123856	Prüfer, Heinrich	Adhesive layers and their production
248645	Girche, Roger	Process for varnishing supports mainly comprising rubber
248647	Jaeger, Gustav	Cementation of metals and metal alloys with beryllium
265607	Jaeger, Gustav	Utensils, apparatus, apparatus parts exposed to attacking gasses [Process for increasing the corrosion resistance of metal objects under the influence of corroding gases by cementation with beryllium]
279187	Loy, Georg	Method for surface-treatment of writing- and drawing-pencils and other rod-shaped articles
281738	Moog, Ferdinand & Schlensog, Bruno	Method for the providing a permanent layer on leather and the like
284648	Gerlach, Erwin	Condenser microphones	US2335662
292505	Wolman, Karl	Process for the impregnation of all kinds of woods
308380	Berger, Edwin	Method of changing the physical and chemical properties of the surface of objects of silicious material
310581	Smakula, Alexander	Method for increasing the durability of polished surfaces of optical elements
312254	Philipson, Erik Franck	Processes for the supply of moisture to products of fibrous substances with a bituminous coating
313985	Sträb, Hermann	Method for producing metallized dielectric sheets	US2367152
318782	Leboime, Rene	Pliable envelope or balloon bag for inflammable gases
326537	Vonbank, Josef	Production of soft rubber-like tubes, plates, rods, etc., out of polyvinyl chlorides
326801	Claude, André	Process for causing luminescent substances to adhere to glass walls	US2344081
326969	Schultze, Guido	Lacquers and a process of applying same	US233846
327474	Stössel, Hugo	Sound and heat insulation
333186	Geffcken, Walter	Method for producing layers on solid objects	US2366516
333249	Müller, Adalbert	Process for water-repelling impregnation of textiles, paper, skins, and leather	US2345142
337664	Haakh, Hermann & Voss, Arthur	Process of stiffening hats and the hats thus produced
342712	Billion, Louis Antoine	Sizing materials for sizing textile threads of all kinds
353978	Ruhnau, Richard	Method and device for producing wax ribbons for mechanical sound recording
354393	Hayami, Nagao	Method of producing an article impregnated with synthetic resin
355270	Sträb, Hermann & Dorn, Walter	Production of metallized dielectric materials
361011	Pense, Walter & Asch, Werner & May, Philipp & Stärk, Hermann	Process of perparing coatings and the materials thus obtained	US2341413
367225	Weissenberg, Gustav Joseph	Process for the production of protective layers on optically active surfaces
367262	Pense, Walter & Asch, Werner & May, Philipp & Stärk, Hermann	Process of preparing lustrous coatings and the materials thus produced
368502	Nachtigall, Eduard	Process for producing an aluminium-coated metal article in which magnesium forms the base metal
373037	Drechsel, Fritz	Treatment of textile material
382094	Loiseleur, Jean	Metallic coating
382660	Heinrich, Fritz & Duell, Fritz & Tempel, Fritz	Process for the production of shaped product and coatings, which are resistant to the influence of motor fuels, oils and solvents
392524	Woitscheck, Arno	Method of coating wax bands, bearing a mechanical sounds record, with graphite and a device for carrying out this method	US2350856
395459	Klas, Heinrich	Manufacture of coated pipes
397138	Fikentscher, Hans & Gaeth, Rudolf	Process of producing films, coatings and impregnations
415485	Andreasen, Christian Julius Valdemar	Method of treating wood
421394	Wolff, Julius	Method of drying artificial sausage skins	US2469621
421395	Wolff, Julius	Method of and device for the manfuacture of artificial sausage skins	US2448067
421396	Wolff, Julius	Method of and an apparatus for producing artificial sausage skins	US2460480
421399	Wolff, Julius	Method of and an apparatus for drying and hardening impregnated artificial sausage skins
433206	Gonon, Paul Jean Jacques	Process for increasing the retention capacity of the sealing surface of artificial porcelain teeth	US2356513
441151	Windschauer, Leib	Process for the preparation of textile threads [In Queens U. Database, Class 91]	US2375971

Class 120 - Stationery

Serial Number	Inventor	Title	Patented
377575	Bodó, G. Károly	Fountain pen
388680	Meier, Georg	Change-propelling-pencil [Multiple-mechanical pencil]	US2344447
421061	Kovàcs, Theodor	Fountain pen	US2338947
421062	Kovacs, Theodor	Fountain pen	US2401167
470091	Leeuwin, Max	Fountain pen

Class 121 - Motors, expansible chamber type

Serial Number	Inventor	Title	Patented
273365	Lesser, Otto	Indirectly operating regulating or controlling apparatus
316982	Fries, Gustav	Driving means for kinematograph film apparatus
326461	Grobe, Hubert	Pneumatic tools, particularly such with reciprocating pistons, such as rock drills and coal pickers	US2349958
390239	Werner, William	Welded crank case, especially for multi-cylinder piston engines, the cyliners being arranged in a row
390240½	Werner, William	Welded crank case
395884	Stump, Eugen	Casings for internal combustion engines
400816	Lang, Richard & Maybach, Karl	Operating mechanism for clutches	US2356598

Class 122 - Liquid heaters and vaporizers

Serial Number	Inventor	Title	Patented
134706	Gilli, Paul	Steam power plant with heat accumulator
226820	Hartmann, Otto	High pressure steam boiler for indirectly generating steam
326527	Wünsch, Guido	Regulating device for steam generators	US2388512
326790	Beldimano, Alessandro	Process and device for the utilisation of the wind engergy by means of direct heat transformation [Apparatus for transforming mechanical energy into heat]	US2344075
338719	Huet, André	Desuperheater for locomotive application
349853	Bredtschneider, Walter	High pressure steam generator	US2344077
374611	Appel, Hans	Low-pressure steam heatings for vehicles	US2437673
390848	Kovács, Irén	Process for preventing the formation of scale and/or for removing any scale formed in boilers

Class 123 - Internal-combustion engine

Serial Number	Inventor	Title	Patented
167568	Freitag, Reinhold & Stoeckicht, Will	Method for the starting of internal combustion engines driving screws, blower blades or other rotating masses [Engine starting apparatus]	US2344083
189394	Seyerle, Wilhelm	Cooling arrangement for internal combustion engines	US2381007
235881	L'Orange, Prosper	Formation of the combustible mixture in internal combustion engines	US2387277
237472	Scherenberg, Hans	Injection internal combustion engine especially for light fuels with timed spark ignition
251007	Wiebicke, Paul	Dieselmotor
254474	Oestrich, Hermann	Internal combustion engine operating on a four stroke cycle in which the supercharging is effected, for instance, by a supercharger and the injection of the fuel by an injectionn pump [Four-cycle internal combustion engine]
265597	Lichte, August	Governors	US2350781
271462	Thomas, Kurt	Injection internal combustion engine with fuel injection into a combustion chamber
283096	Hurst, Max & Helmschrott, Hans & Hermann, Fritz	Apparatus for controlling the fuel supply of internal combustion engines
283256	Mader, Otto & Gropler, Hans & Handke, Erwin	Drive mechanism for attachment to airplane motors
286744	Leizaola, Luis	Cylinders of internal-combustion engines with combustion-and-whirling chambers in the pistons
288942	Posch, Oskar	Liquid pumps	US2396602
288979	Biechl, Josef	Fuel admission system for internal combustion engines
288980	Biechl, Josef	Fuel metering devices for internal combustion engines
296469	Schnetzer, Erwin	Air cooled radial engine
296630	Helmbold, Theodor & Keller, Konradin	Charge-coolers for radial engines
296654	Löhner, Kurt & Kappus, Peter	Air charge cooling device	US2350784
299652	Nübling, Otto & Wirthgen, Erich	Gearing for aircrafts	US2336631
303121	Gosslau, Fritz	Motor with cylinders arranged in rows in V-fashion
314190	Hurst, Max	Fuel supply control apparatus for injection internal combustion engines
322387	Dausinger, Franz	Ignition device for internal combustion engines
326141	Ramshorn, Reinhard	Controllable cowling for air-cooled internal combustion engines
332506	Nallinger, Fritz & Glamann, Wilhelm	Internal combustion engine	US2338959
342325	Dobrosavljevitch, Slobodan M.	Aero-engine sparking plug with a solid insulator	US2350731
343303	Waseige, Charles Raymond	Fly-wheel starters for aircraft engines	US2381018
348726	Hurst, Max	Internal combustion engines	US2392591
348782	Voit, Willy	Liquid fuel injection system for multicylinder internal combustion engines	US2356134
356072	Schimanek, Emil	Process and apparatus for maintaining the velocity of flow of the gas in the supply of internal combustion engines with gas generators	US2382747
368293	von Mallinckrodt, Werner	Internal combustion engines
370141	Wohlmeyer, Josef	Percussive tools operated by an internal combustion engine	US2396627
371803	Heylandt, Christian Wilhelm Paul & Mewes, Rudolf	Cylindrical rotary slide valve
374800	Perreau, André	Devices feeding with air the explosion chamber of internal combustion motors
376679	Fuscaldo, Ottavio	Device for obtaining automatically the proper fuel-air mixture under all conditions of operation of internal combustion engines fitted with electromagnetic injection	US2410728
378640	Loison, Emile & Marchand, Cesar	Lubrication devices
381094	Neugebauer, Franz	Method of operating free-piston internal combustion engines
381656	Neugebauer, Franz	Free-piston engines with oppositely moving masses
383029	Callsen, Albert	Starting device for internal combustion engines	US2338403
383510	Pischinger, Anton & Antweiler, Friedrich	Fuel injection type internal combustion engine having a whirl chamber
398831	Ruppe, Hugo	Internal combustion engine	US2374959
412524	Lautrette, Jean André	Regenerating devices for the lubricating oil for motors and the like
414028	Javal, Henri Leopold	Explosion and internal combustion engines	US2349967
418665	Neugebauer, Franz & Wagenseil, Ludwig	Free piston motor compressor	US2387603
419783	Claveau, Emile	Two-stroke engine	US2338406
421060	Schimanek, Emil	Method and device for regulating the ratio of mixture of gases
422843	Carlin, Attilio	Injection means for internal combustion engines
428778	Petersen, Ove & Lindberg-Nielsen, Mads	Internal combustion engines with crosshead	US2344364
431003	Breslav, Victor	Internal combustion engine
436355	Bonnier, Claude Etienne	Explosion or combustion engines	US2365384
443988	Bernard, Jean	Ignition systems for multi-cylinder engines
450937	Waseige, Charles Raymond	Devices for starting aircraft engines
472534	Weiss, Abraham	Method and means for saving fuel in internal combustion engines	US2392207

Class 125 - Stone working

Serial Number	Inventor	Title	Patented
308213	Bandini, Franco	Mettalic saw blade for sawing stone, marble plates and the like from stone blocks
316697	Pinazza, Giosuè	Acting device for centrifugal force percussion apparata	US2350921
384197	Schilling, Ottmar	Tools for chiselling out grooves or channels in hard surfaces, especially in walls [Tool for cutting grooves]	US2338972

Class 126 - Stoves and furnaces

Serial Number	Inventor	Title	Patented
320946	Wünsch, Guido	Heating apparatus for the heating of rooms
362559½	Hendel, Margarete	Stand for cooking vessels	US2350757
415888	Carol, Marius	Rural stove	US2375466
442130	Adrianoff, Alexandre	Hearth for burning solid fuels leaving ashes having any melting point	US2484064

Class 127 - Sugar, starch, and carbohydrates

Serial Number	Inventor	Title	Patented
309483	Rozenbroek, Meindert Danius	Process for preparing starch products
309484	Rozenbroek, Meindert Danius	Process for preparing starch products
309485	Rozenbroek, Meindert Danius	Process for preparing starch products	US2338457
356560	Hara, Takeshi	Method of manufacturing dry powdered sugar
358942	Schmidt, Heinrich	Bleaching process for fluids	US2369757
359575	Smit, Pieter	Purification of sugar containing liquids
415634	Dienema, Jacob	Method for the concentration of crude sugarcane-sap
420819	Scholler, Heinrich	Processing of wood sugar solution	US2394334
439604	Boinot, Firmin Charles	Method for saccharifying cellulosic materials by means of diluted mineral acids	US2356500

Class 128 - Surgery

Serial Number	Inventor	Title	Patented
222683	Hildner, Johannes	Hygience bandage made of an absorbing material
250746	Klinghoffer, Stefan	Method and device for retaining the radioactivity of all liquids intended for injections	US2423240
270551	Kono, Yoshimitsu	Cannula holder	US2350775
281413	Rebano, Luis S.	Ice-bags and hot-water-bottles
304428	Braun, Bernd & Veit, Hans & Hammer, Fritz	Method of, and apparatus for, sterilizing organic or synthetic materials, especially chirurgical sewing threads
320074	Rósa, László & Zakariás, Imre	Apparatus for the pick-up and recording of the cardiac function or of slow processes of motion in other organs of the human or animal body, possibly in lifeless bodies [Apparatus for the recording of slow processes]	US2409317
333232	Rosa, Lazlo & Zakariás, Imre	Device for functional test of organs of living bodies	US2352011
345670	Gottlieb, Herbert	Appliances for mechanical cosmetic treatment
347414	Diena nee Bruno, Elettra	Apparatus for the artificial respiration
384006	Margaria, Rodolfo	Breathing apparatus for respiration at high altitudes	US2432627
388441	Robinson, James P.	Medicinal applicator and dipenser	US2410460
392529	Seng, Manfred	Cool wet dressing with bandages	US2390184
395760	Schopper, Erwin & Eggert, John	Treatment of tissue with therapeutically active rays
401123	van den Bergh, Frederik Carsten	Bandage for women
405261	Lautenschläger, Franz	Syringe for medical purposes	US2375929
434079½	Lesser, Otto	Adhesive units	US2387593
437449	Richou, Maxime Jean	High altitude flying suit

Class 129 - Paper files and binders

Serial Number	Inventor	Title	Patented
333335	Guichard, Raymond Arthur Eugéne	Device for filing documents	US2350754
358039	Mathiesen, Nicolaus Per	Card filing compartments	US2341639
414965	Lampertz, Otto	Card index system

Class 130 - Threshing

Serial Number	Inventor	Title	Patented
358094	Zajotti, Adolfo & Tellini, Carlo	Utilizing mais cane and sorghum cane	US2404762
419965	Sýkora, Vladislav	Method and apparatus for cropping hops

Class 131 - Tobacco

Serial Number	Inventor	Title	Patented
168181	Röber, Constantin Friedrich	Devices for the conveyance of cigars during their manufacture
254575	Herrmann, Paul Johannes	Cigarette rod making machine
254576	Herrmann, Paul Johannes	Device for the forming of a tobacco rod in cigarette machines	US2342803
261049	Lande, Jules Martin	Tobacco products and process of making same
279073	Rosler, Richard Erich	Tobacco spreader	US2356534
304214	Böhme, Joachim & Sutheimer, Karl	Method of increasing the volume of organic substances, particularly vegetable substances

Class 132 - Toilet

Serial Number	Inventor	Title	Patented
283283	Leclabart, Jean	Heater for permanent waving	US2344097
316520	Bartók, Dénes	Method of treating human hair
377912	Rossi, Giovanni	Method and apparatus for applying hair pins to the hair for the purpose of curling waving or dressing the hair in general [Devices for applying hair pins to curls or waves]	US2345157
424071	Schmidt, Max	Container for a razor with stropping device

Class 133 - Coinhandling

Serial Number	Inventor	Title	Patented
338135	Reis, Eugen	Coin counting device	US2396605

Class 134 - Liquid coatings compositions

Serial Number	Inventor	Title	Patented
234492	Kloepfer, Harry & Backe, Hans, & Hupe, Richard	Process for the production of rubber-active so-called gas black
268144	Backe, Hans	Process for the preparation of active so-called gas black

Class 136 - Batteries

Serial Number	Inventor	Title	Patented
17398	Jumau, Lucien Jules	Lead electric accumulators
282296	Marhenkel, Erich	Dry cell
355709	Schneider, Friedrich	Valves for electric storage batteries [Electric storage batteries]	US2394333
363506	Beck, Richard	Process for increasing the efficiency of storage batteries
367391	Hermann, Heinrich	Manufacturing selenium cells [In Queens U. Database, Class 175]
385561	Szabó, József	Electric cells
394417	Marhenkel, Erich	Production of galvanic dry cells

Class 137 - Water distribution

Serial Number	Inventor	Title	Patented
243016	Bayerl, Victor	Gas analyser and gas analysis apparatus
266692	Muller, Jacques	Fluid handling mechanism	US2452256
302585	Feuerstein, Michiel Johannes Stoel	Dosing arrangements
318940	Archaouloff, Oleg	Automatic pump for fuel injection actuated by the compression of gas in the cylinder of an internal combustion engine
357688	Hintze, Rudolf & Engelmann, Anton	Refrigerating apparatus of the compression type	US2366404
362699	Wunsch, Guido	Devices responsive to the rate of flow through a conduit
376678	Fuscaldo, Ottavio	Injectors with electro-magnetic control for internal combustion engines
397994	Piquerez, Emile	Plant for the remote control of a gate-valve by means of a fluid under pressure
404526	Kleeberger, Rudolf	Device for maintaining constant pressure in conduits or reservoirs filled with liquids or gases
438103	Rambert, Raymond Lucien	Value control device

Class 138 - Pipes and tubular conduits

Serial Number	Inventor	Title	Patented
278373	Meyer, Dan	Pipe line systems
286803	Langbein, John	Methods of insulating metal surfaces
293095	Thaon, Henri	Processes and devices for the compensation of unequal expansion of a fluid and of a vessel containg same [Equalization device]
340187	Braun, Matthaus	Laminated tubes
346964	van den berg, Walter	Reservoirs for fluid filled cable [In Queens U. Database, Class 309]	US2352041
368646	Röhr, Paul & Gottschalk, Siegfried	Assembly arrangements for power transmission in aircraft
397372	Klein, Hans & Hemmann, Otto & Keinke, Rudolf & Hofmann, Oskar, & Boehmer, Wilhelm	Distributor fluids	US2343560

Class 139 - Textiles, weaving

Serial Number	Inventor	Title	Patented
310552	Hubert, Emil & Rein, Herbert	Process for the manufacture of sieve nettings	US2354022
338620	Pelcé, Henri	Change-over device for circular weaving looms	US2356425
415025	Schmidt, Rudolf	Weaver's shuttle	US2404749

Class 140 - Wire working

Serial Number	Inventor	Title	Patented
400274	Knoop, Hendrikus	Machine for the manufacturing of helically wound springs in particular springs being narrower at the ends than intermediately e.g. double conical springs [Machine for making helically wound barrel-shaped springs]	US2335423
445791	Büttner, Hugo	Process of forming spring fillers for furniture and the like	US2350723
445792	Büttner, Hugo	Method and device for manufacturing spring-nets for mattresses, seat-cushions and the like	US2351923

Class 141 - Washing apparatus

Serial Number	Inventor	Title	Patented
241833	Hertz, Jørgen	Dishwashing machines, primarily for household use	US2372205

Class 143 - Wood sawing

Serial Number	Inventor	Title	Patented
287832	Seibel, Fritz	Motor-driven chain saws

Class 144 - Woodworking

Serial Number	Inventor	Title	Patented
224114	Prüfer, Heinrich	Method of binding bodies together
290146	Nielsen, Robert Alexander	Wood cutting machines
290908	Bugatti, Ettore	Construction of hollow bodies such as aircraft elements
299880	Mehlhorn, Richard	Method of and macine for disbarking trunks especially of foliage trees [Machine for disbarking logs]	US2341640
308486	Ludwig, Rudolf	Method for jointing veneer by means of artificial resins in alcoholic solution and/or colloidal and/or by means artificial resins soap and veneer and plywood obtained by said method [Edge gluing wood sheets with synthetic resin]
354762	Holzhey, Anton & Holzhey, Fritz	System for disbarking trunks
370059	Friz, Adolf	Method and apparatus for joining veneers	US2351946
370060	Friz, Adolf	Veneering press	US2348803
379694	Lyon, Marcell Jeanne & Pantin, Maurice Louchard & Guillotel, Gaston	Method and apparatu s for fabricating objects from ply-wood and products thereof
392181	Schulz, Conrad	Vehicle body
398008	Franke, Frederich Wilhelm	Method of and means for making and applying corrugated wood

Class 145 - Woodworking tools

Serial Number	Inventor	Title	Patented
360381	Hilgers, Gerrit	Implements for driving in screws, wire nails, etc.
374746	Gubik, Rudolf	Saw with a freely projecting saw blade

Class 146 - Vegetable and meat cutters

Serial Number	Inventor	Title	Patented
324232	Pallmann, Ludwig	Reducing machines	US2377443
369982	Model, Wilhelm	Apparatus for processing materials	US2351995

Class 148 - Metal treatment

Serial Number	Inventor	Title	Patented
174078	Dürr, Ludwig	Method of increasing the quality of structures and aluminum alloy such as girders for airships and the like
247661	Berthier, René Marie	Process for treatment of metallic surfaces
250848	Albrecht, Carl & Goldammer, Bruno	Process for hardening files
283320	Edner, Hans	Methods of producing hard-soldered or welded joints
304413	Wasmuht, Roland	High grade steels for building purposes
315184	Siebel, Gustav & Nachtigall, Eduard, & Köcher, Hermann	Process for the production of coloured protective layers on castings, especially die-castings, of magnes ium base alloys
321788	Bernstorff, Hans	Process for the manufacture of beryllium cemented metallic articles
322034	Beck, Adolf & Siebel, Gustav & Vosskühler, Hugo	Magnesium base alloys	US2420293
330156	Fahlenbrach, Hermann	Articles in which constant and stable permeability values are required, as for instance pupin coils, krarup conductors, etc.
339132	Becker, Gottfried & Daeves, Karl & Steinberg, Fritz	Process for the introduction of chromium into iron or steel articles	US2399848
360936	Hofmann, Fritz	Producing rails of high resistance to wear
369614	Becker, Gottfried & Daeves, Karl & Steinberg, Fritz	Production of corrosion-proof surfaces on steel by chromium diffusion
369617	Becker, Gottfried & Daeves, Karl & Steinberg, Fritz	Method for the production of corrosion-proof and heat-proof chromium coatings
377047	Gauthier, Gaston	Alumninium alloys
383243	Burkhardt, Wilhelm	Method of eliminating impurities contained in iron and steel, and vacuum oven heated by glow discharge, more particularly annealing and melting oven adapted to carry into effect said method
414206	Meier, Sr., Ernst	Process of manufacturing composite metal bodies
416914	Lankhorst, Aegidius	Process of rustproofing metals and objects with a metallic surface
421960	Becker, Gottfried & Daeves, Karl & Steinberg, Fritz	Process for the production of articles made of iron and steel with corrosion-proof surface	US2415078

Class 149 - Hides, skins, and leather

Serial Number	Inventor	Title	Patented
365389	Vág, Zoltán	Preparation of skins and the like
374084	Riess, Carl	Process of soaking all kinds of dried and salted hides and skins [In Queens U. Database, Class 112]
402440	Coutor, Charles	Product applicable for tanning purposes and method for making the same	US2376663
434625	Riehs, Carl	Process of soaking all kinds of dried and salted hides and skins	US2469787

Class 150 - Cloth, leather, and rubber receptacles

Serial Number	Inventor	Title	Patented
290983	Ehrenhaft, Viktor	Handbag
380014	Morichetto, Daniele	Ladys handbag

Class 151 - Nuts and bolt locks

Serial Number	Inventor	Title	Patented
267209	Fehrmann, Adolf	Nut locking device
338173	Heinold, Gustav Willy	Lock washers and method of producing same	US2350756
368592	Engelmann, Walter	Lock-nuts
382653	Ozuka, Katsuichi	Locking device for bolts, spindles or the like
400471	Rüdiger, Ernst	Self-locking nut
406374	Rüdiger, Ernst	Locking device for screwed pipe joints	US2340565
411076	Jacob, Paul	Spreading rint lock-washer

Class 152 - Resilient tires and wheels

Serial Number	Inventor	Title	Patented
377371	Hetz, Fritz	Non-skid device
384730	Bornemann, Otto	Floating swivel rings for non-skid chains	US2349935
398922	de Jong, Andries	Wheel with spring spokes
441860	Couturier, Alfred Louis	Air tubes for pneumatic tyres	US2356508
456846	Perreau, Armand Raymond Ernest André	Elastic wheel	US2435599

Class 153 - Metal bending

Serial Number	Inventor	Title	Patented
268830	Wagenbach, Anton	Bending rollers for bar or rod iron benders or the like
272281	Amiot, Félix	Methods and devices for shaping pieces	US2292731
283285	Sato, Takeo	Bender for rolled-up strip such as window frame, pipe or fuel tank of motor vehicles	US2399892
296515	Schmidt, Rudolf	Method of straightening metal bars
360151	Ungerer, Fritz	Straightening machine for sheet metal plates	US2352040
373697	Schmidt, Rudolf	Method for the manufacture of high grade metal bars, rods or the like
373778	Schmidt, Rudolf	Twisting reinforcements for concrete

Class 154 - Laminated fabric manufactures

Serial Number	Inventor	Title	Patented
106014	Stelkens, Willy	Stiffeners for articles of apparel
110194	Jarecki, Walter	Structure of interconnected individual layers of felted or interspun and felted fibres, and method of producing the same
163602	Grabec, Josef A.	Method and apparatus for molding perforated elastic material	US2352194
178648	Streng, Franz	Semi-stiff multi-layer fabrics and a process of preparing them
180036	Fischer, Arnost	Article of manufacture consisting wholly or in part of synthetic resin and process of producing the same
188585	Marcus, Margarete	Manufacture of fabric layers provided with water repellent coatings
202136	Nottebohm, Carl Ludwig	Process and apparatus for the impregnation of fibre fleeces with binding agents	US2338960
212074	Dornier, Claude	Light weight sheet-like construction material
212075	Dornier, Claude	Light weight construction materials and method of producing same
224636	Schmidt, Fritz	Coating method
229251	Schnell, Fritz	Manufacture of vehicle doors
229798	Bäseler, Wolfgang & Dietrich, Jakob & Lüty, Willy	Manufacture of compound lumber
233783	Herrmann, Conrad	Laminated products
243598	Barchfeld, Gustav	Structural parts for coachwork and the like
244268	Zündorf, Helmut	Tubular sheaths for bowden cable devices and the like
254744	van der Veen, Gerhard	Protective material against war gases and chemicals and methods of making the same
255779	Holthof, Wolfgang	Method of producing very thin silk paper
255866	Péchin, Louis Charles Frédéric	Process for production of plastic plywood
260172	Klingler, Emil & Knapp, Otto & Lutz, Moritz	Rubber insulation for metallic conductors
xxxxxx	Henning, Alfred	Joining parts made of thermoplastic material
273397	Komenda, Erwin	Laminated body	US2330595
273885	Goudsmit, Johan Leon	Floor covering	US2365814
281735	Giese, Otto	Method of firmly uniting rubber with inserts or applied layers of fibrous material
289432	Meyer, Heinz	Processes for the manufacture of fibre board	US2433876
291280	Wechsberg, Raoul	Materials resistant to poisonous gases
293601	Nicolle, Charles	Impervious packings and receptacles	US2373899
297182	Lejeune, Sylvain	Method for manufacturing balls for games
299782	Amendola, Raffaele	Linoleum coverings for floors
306031	Nottebohm, Carl Ludwig	Production of artificial leather
308846	Tominaga, Masaichi	Material for arresting sounds and holding warmth	US2356625
316636	Schumann, Artur	Building plate
320175	Niki, Genkichi	Process for manufacturing pile fabric such as carpet
320200	Guerci, Giovanni	Corrugated fibro-cement slabs
346496	Niki, Genkichi	Process for manufacturing pile fabric such as carpet	US2378574
358825	Hasimoto, Masayosi	Method of manufacturing clutch discs for airplanes	US2415097
359744	Hecht, Otto & Prillwitz, Hans & Dane, Ivo	Preparation of composite rubber articles	US2337464
365862	Delloye, André Laurent Camille	Vitreous insulators	US2371880
367723	Herrmann, Otto	Foils for coating purposes
372674	Haas, Rudolf	Apparatus for the longitudinal creping of webs of paper or other sheet material	US2376915
373283	Grabec, Josef	Method of manufacturing composite sheet material	US2361682
382146	Leboime, René & Jacqueau, Henri	Manufacture of flexible envelopes or the like	US2523312
388710	Maurer, Max	Arrangement for avoiding errors in measurement due to one-sided heating of the cases of optical instruments	US2376710
391220	Pfeiffer, Walter	Method of manufacturing flattened condensers
395118	Friedrichs, Werner	Bipartite tube with tube body wound of several layersand containing at least one layer of metal foil	US2374858
424624	Lejeune, Léon Sylvain Max	Process for making tennis balls
446074	Bechetoille, Emmanuel Prosper Marie	Method of making fur-like articles

Class 155 - Chairs and seats

Serial Number	Inventor	Title	Patented
331871	Musso, Enrico	Resilient saddle for cycles, motorcycles and like vehicles
352080	Schleicher, Rudolf	Pillion saddle for motorcycles
369346	Story, Anthonie	Method of making resilient seats, arms backs, or the like for furniture, and seats, etc. made according to the said method [Resilient seat or back]	US2347617
373784	Rüsch, Willy	Hollow ring-shaped seat-cushion
378045	Lentz, Anton	Driver's seat especially for tractors and agricultural machines	US2373694
383860	Sluyter, Nicolaas	Rubber cushioning device and rubber cushioning elements adapted for use therein	US2443201
407661	de Nachtegaal, Antoon Mattheus	Bed settees or chairs
435159½	Grivetto, Michele	Saddle support for cycle	US2351957

Class 158 - Liquid and gaseous fuel burners

Serial Number	Inventor	Title	Patented
258837	Hegwein, Georg	Safety ignition devices for gas burners
323160	Reiner, Otto	Combined reversing method and reversing device for the heating gas, the air and the waste gas for use in connection with industrial furnace plants operating with alternating gas and air currents [Reversing apparatus for furnace]	US2416953
332417	Dekker, Arien	Crude oil burners	US2367460
405598	Strobel, Werner	Device for retaining a reserve supply of fuel in fuel tanks, particularly of motor-cars
411177	Michelmann, Otto	Reserve supply system for motor vehicles
411178	Fiedler, Fritz	Fuel tank with emergency supply for motor-cars and the like

Class 164 - Cutting and Punching Sheets and Bars

Serial Number	Inventor	Title	Patented
315157	Schlumberger, Marcel	Gun perforator	US2429240
385034	von Ardenne, Manfred	Arrangement for producing filters
403649	Schlumberger, Marcel	Gun firing apparatus	US2343087
403650	Schlumberger, Marcel	Well casing perforator	US2429240

Class 166 - Wells

Serial Number	Inventor	Title	Patented
405024	Schlumberger, Marcel	Well conditioning apparatus	US2381929

Class 167 - Medicines, poisons, and cosmetics

Serial Number	Inventor	Title	Patented
143736	Haffner, Felix & Wiegand, Georg	Emulsions of physiologically active compounds
188058	Dorr, Eduard & Goth, Erich	Preparations for protection from insects
188059	Dorr, Eduard & Goth, Erich	Preparations for protection from insects
211101	Lasch, Fritz & Schonbrunner, Egon	Pancreatic hormone preparations and the production thereof
250064	Ursum, Werner	Method for the manufacture of concentrated durable fluid solutions capable of injection, of medicinal substances which are insoluble or not easily soluble in water
254967	Lowenstein, Leo	Process for making froths containing hydrocyanic acid
263240	Maekawa, Yu	Preparation of immune blood, separated plasma and serum of said blood
275543	Grandel, Felix	Preparation of vitamin-F preparations
276021	Peters, Gerhard	Exterminating agents for animal vermin	US2344105
277259	Nestler, Paul	Impregnating preparation with insecticidal effect for textile goods
281683	Rosenmund, Karl Wilhelm	Production of disinfectants and pest exterminating agents	US2341657
319965	Olsen, Alf	Preparation containing B-vitamins and process for the manufacture of same
321912	Paunz, Lajos & Sasvari, Gyorgy	Hormone preparations and method for producing the same
322257	Carnauh, Boruk	Disinfecting product and processes for its manufacture and application	US2351924
340476	Moskovits, Bela	Therapeutically valuable calcium salt dissolved in oil and a process for the production thereof
345841	Weidner, Edmund	Disinfectants
347311	von Philipp, Hans	Insecticides	US2350814
352309	Paolini, Carlo	Arsenical insecticidal composition
352814	Henares, Hilarion G.	Wood preservative and process of preparing the same
356558	Yamamoto, Ryo & Hara, Takeshi	Method of preparing stable dry vitamin C
356559	Yamamoto, Ryo & Hara, Takeshi	Method of extracting vitamin C	US2383902
358278	Grandel, Felix & Enders, Curt & Hegendorfer, Max	Process for the production of substances expediting the growth of cells
358279	Grandel, Felix	Production of vitamin-F preparations
361329	Fiedler, Herbert	Process of producing sulphurous powders
368731	Fischer, Albert	Wound healing preparations and the production thereof
371834	Komeda, Jean	Process for increasing the efficiency of insect destroying drug extracts	US2376702
373185	Wendt, Bruno	Carbohydrate solutions
373612	Kok, Jan	Process for the preparation of durable aqueous solutions particularly of pharmaceutical nature
374085	Giloy, Franz	Mouth washes
379550	Grandel, Felix	Process for extracting durable concentrates of fat-soluble vitamines free from fatty acid
393301	Betting, Marius Frits Henri	Composition and method for controlling noxious organisms
395485	Porsin, Henri Achille Etienne	Therapeutical uses of organic peroxides
401974	Schotte, Herbert & Ebert, Robert	Weed-destroying preparations	US2344063
414980	Grandel, Felix & Neumann, Hans	Manufacturing of concentrates of fat-soluble active substances, especially vitamines
416053	Schussler, Heribert	Water-soluble moth-proofing agents (in Queens database under Class 260)
421249	Maekawa, Yu	Preparation of powerful soluble tubercle bacilli antigen
427984	Engelhard, Hermann & Petri, Werner	Pharmaceutical preparations possessing surface-active properties and process of making same	US2375905
430304	Bernat, Henri	Product for overcoming the crytogamic diseases of plants and its manufacturing process	US235629
434148	Kolb, Emile	Method and products for treating plants or plant parts	US2387591
738375	Regnier, Jean	Local anaesthetics

Class 169 - Fire extinguishers

Serial Number	Inventor	Title	Patented
213902	Kochmann, Wilhelm	Fire-extinguishing and preventing system for motor vehicles	US2338440
309471	Friedrich, Karl	Method of extinguishing fire

Class 170 - Motors, fluid current

Serial Number	Inventor	Title	Patented
209675	Seppeler, Eduard	Synchronizing airscrews	US2403243
211843	Stieglitz, Albert	Power regulation for aircraft engines	US2384353
233270	Rupp, Albert	Screw-propeller	US2353190
281826	Stieglitz, Albert & Gartner, Berthold	Arrangement for controlling the power of internal combustion engines	US2396618
297931	Mennesson, Marcel Louis	Control devices for variable pitch propellers	US2407317
299879	Martinotti, Pietro	Aircraft propellers	US239446
300334	Freitag, Reinhold	Arrangement for adjusting the blades of opposite rotating air propellers	US2338420
301295	Rendelstein, Max	Process for increasing the effective output of propellers, of aeromeotors, etc.	US2357279
302870	Nallinger, Fritz & Friedrich, Albert	Multiple motor driving mechanism for air craft with adjustable propeller	US2396745
303182	Loth, William Arthur & Guyot, Sebastienne Marie Henriette	Swivelling screw propellers	US2382431
303551	Gosslau, Fritz	Gearing for aircrafts flying in large altitudes
307581	Nallinger, Fritz	Multi motor driving mechanism, particularly for air propellers
313982	Suberkrub, Franz August	Paddle-wheel with movable paddles
316437	Seppeler, Eduard	Adjusting pitch of screws	US2392556
318662	Bitterli, Emile V. & Forrer, Max	Propellers
329155	Duchaussoy, Camille	Mechanism for transmitting motion	US2376673
330322	Nallinger, Fritz	Two, in opposite direction rotating, commonly driven air propellers
337743	Lehwess, Edouard E.	Device for fastening the shank of a propeller blade
339000	Gosslau, Fritz & Schmidt, Johannes	Aircraft engine controls
345132	Florian, Ernst & Peterse, Heinrich & Christian, Manfred	Variable pitch air propeller	US2404703
355401	Cordes, Gerhard	Method for aerodynamically braking aircraft in flight
362279	Prause, Robert	Device for adjusting the pitch of air propellers	US2404743
362280	Prause, Robert & Schmid, Lukas	Air propeller driving system	US2378580
363192	Lorenzen, Max	Aircraft propulsion
367128	Bellomo, Nicola	Propellers with variable pitch	US2397524
374672	Friedrich, Albert	Driving arrangement, especially for air propellers rotating in opposite directions	US2394299
385563	Waseige, Charles Raymond	Screw propeller pitch adjusting devices	US2432550
388128	Ratie, Rene Jean	Apparatus for controlling, with pitch indicator, the pitch variations of propellers	US2417176
394324	Gosslau, Fritz & Schmidt, Johannes & Zarnack, Werner	Device for regulating internal combustion engines	US2382707
425692	D'Aubarede, Paul Charles Albert Marie	Air-screw propeller mountings	US2369538
450935	Waseige, Charles Raymond	Polyengine bipropeller group for aerodynes	US2380889

Class 171 - Electricity, generation

Serial Number	Inventor	Title	Patented
206693	Righi, Aldo	Device for signaling the instant when two systems of three-phase electric currents are in synchronism with each other
239432	Koppelmann, Floris & Zuhlke, Marcel	Switching reactor
246302	Bohm, Helmut	Voltage-regulating transformers
246825	Wolf, Gunter	Voltage control
273332	Munz, Hans	Electromagnetic control device	US2338957
287174	Basili, Augusto	Electronic automatic regulator for low-voltage electric generators
288502	Bechmann, Rudolph	Piezo-electric oscillatory crystal plate
299393	Bergtold, Fritz	Means for guiding magnetic fields
309226	Geyger, Wilhelm	Apparatus for measuring direct currents or voltages	US2338423
315543	Toeller, Heinrich	Method of reducing hysteresis inaccuracy
319355	Zollner, Hans	Collectors for electric machines
319356	Zollner, Hans & Voegler, Philipp	Commutator bars
321103	Corset, Lucien Alfred Maurice	Remote reading electric indicator gauge	US2353148
322299	von Beckerath, Hans	Piezo-electric device	US2385896
327777	Linder, Rudolf	Electric circuit for motor vehicles	US2372438
333208	Bechmann, Rudolf & Herzog, Werner	Method to determine the electrical axes of quartz crystals
333242	Languepin, Jacques Emile Jules	Resistance electric welding machines
334084	Conradty, Ottmar & Zollner, Hans	Electrical machine
334086	Zollner, Hans & Conradty, Ottmar	Carbon collectors
337106	Jahn, Rudolf & Himmelbauer, Viktor	Method and arrangement for the generation of ultra sound waves
341722	Weis, Adolf & Brackmann, Josef	Arrangement of winding of high-frequency purposes
342613	Feussner, Helmut	Dust-core arrangment
343285	Bernard, Jean	Multi-armature ignition magneto
347313	Alessandri, Allessandro	Magnetic flux distributors	US2341171
355391	Conradty, Ottmar	Connection for carbon segments of collectors	US2338409
364006	Bechmann, Rudolf	Method of eliminating multiple waves of piezo-electric crystals
374600	Holleber, Eberhard & Zollner, Hans	Carbon collector
377407	Hagedorn, Gerhard & Luxer, Erwin & Wahl, Ernst-Gunther	Welding control system	US2344086
380744	Dorsman, Cornelis & Reynst, Maximilien Felix & Veldhuizen, Romijn	Device for oscillographing electrical or mechincal processes	US2344344
380869	Nowak, Alfred	RF variometer comprising shiftable dust core	US2332868
383526	Weis, Adolf	Means adapted to vary the coupling of inductances especially for RF apparatus	US2332879
384096	Lehmann, Felix	Mounting for piezo-electric crystals
387768	Klinkhamer, Hendrik Abraham Wignand & Cassee, Ewout	Device suitable for charging batteries	US2341446
388811	Bardin, Georges	Current-generating gear for pocket electric lamps	US2437675
403096	Bechmann, Rudolf & Kundt, Heinz E. & Bremer, Heinrich	Piezo-electric crystal mounting	US234373
404631	Patin, Albert	Electric controlling systems	US2380784
427480	Zdansky, Ewald	Charging apparatus for network connection, for accumulator pocket lamps
427649	Poncet, Andre Francois Henry	Mercury amperehourmeters	US2356613
434042	Menzel, Friedrich	Combined electromagnetic regulator and switch	US2354038
439904	Bricout, Pierre	Method and appliance for curve distortion of alternating currents	US2436788
445426	Eek, Thorleif	Means for driving an electric generator on board a ship
446374	Giacomoni, Paul Marie Jacques Severin de	Method of transition for passing from a connection to another in couplings of direct current motors (in Queens U. database under class 172)
470099	Dorsman, Cornelis	Device for measuring low direct voltages	US2372062
470105	Donker, Pieter Adriaan	Device for measuring direct voltages
470685	Dorsman, Cornelis	Device for measuring low direct voltages	US2406492

Class 172 - Electricity, motive power

Serial Number	Inventor	Title	Patented
278941	Flury, Placido	Device for the speed regulation of electric commutator machines	US2422614
281313	de Kramolin, Leon Ladislas	Systems for generating electricity
294402	Beer, Palle-Finn & Anneberg, Peter Vilhelm Ingefrid Pedersen	Sound recording apparatus	US2345087
299951	List, Heinrich	Production of high impulses of energy	US2394316
304170	Kalbskopf, Walter	Control condensers for alternating current circuits
347517	Steinbach, Heinz	Electric motor control	US2338979
360486	Fischer, Oswald	Electrically driven toy vehicle or more specifically a vehicle for electrical toy trains	US2350740
362655	Krussmann, Adolf	Electrically operating regulating device	US2399872
364730	Binder, Eugen	Electrically operated control device	US2347590
383524	Van Lammeren, Johannes Antonius & van der Mey, Wytze Hendrik	Radio-receiver comprising a motor having an axially movable shaft for performing more than one control function	US2345778
398549	de Kramolin, Ladislaus	Regulating arrangement
401787	Koppelmann, Floris & Leukert, Wilhelm	Commutator devices	US2378561
415827	Holters, Friedrich	Electric control circuits	US2355727
420572	Lorschy, Gyorgy	Single-phase machines of the commutator type and in the circuit arrangement of them	US2399875
436356	de Giacomoni, Paul Marie Jacques Severin	Series-parallel and parallel connections for direct current motors with split up exciting winding	US2360766
439320	Mozzanini, Georges Gabriel	Device for insuring a proper distribution of the loads among direct current electric machines
462134	Jasse, Raymond Joseph	Electric motors the speed of which is regularized by a tuning-fork	US2387588

Class 173 - Electricity, connectors

Serial Number	Inventor	Title	Patented
340686	Azzaroli, Giacomo	Frictional adherence connection between the cells of electric storage batteries
412527	Malczewski, Jeremi	Electric circuits of the kind of the armoured ignition circuits for engines	US2361699

Class 174 - Electricity, conductors and insulators

Serial Number	Inventor	Title	Patented
36971	Peters, Wilhelm	Arrangement to raise the break-down strenght of insulators
65526	Lepetit, Jean	Electric wires and method for making the same
178414	Lepetit, Jean	Incombustible end pieces
193918	Schmitt, Hans & Hanff, Ferdinanc	Aluminum-sheathed cables
218848	Beckett, Charles, Murray	Electric cables
222943	Lepetit, Jean	Electric wires and method of making the same
258571	Lepetit, Jean	Electric conductors	US2351056
260226	Eichinger, Philippe Eugene Henri	Electric conductors	US2334756
269478	Jacobs, Hans	Cable joint
275250	Deppe, Johannes	Electric cable
275568	Lepetit, Jean	Manufacture of electric cables or other insulated electric conductors for power conduction or heating purposes
283990	Pfaff, Peter & von Bergkampf, Erich Schwarz	Bushing for electric supply conductors leading to the electric motor arranged in the casing of a refigerating apparatus
285390	Lepetit, Jean	Insulated electric conductors
288518	Ike, Heinrich	Arrangement for closing up tubular condensers
298490	Hoekstra, Johannes	Insulated conductor and method of making same
312306	van Lin, Oswaldus Anthonius Jacobus & Hoekstra, Johannes & Rieter, Joseph Eugene Hubert	Insulated electrical conductor
321131	Hoekstra, Johannes	Insulated conductor and method of making same
324429	Contini, Renato Finzi	Crossed strip insulating complex for concentric cables
330523	Niedermeyer, Willy	Boxes for electric apparatus
335154	Thommen, Hans	Tubular body of insulating material
340675	Havlicek, Vitezslav	Bushing insulators	US2366258
352040	Gonningen, Hermann	Electric leading-in arrangments
373583	Benischek, Adolf	Insulated wires and cables
374560	Holst, Gilles & Hoekstra, Johannes	Electrical apparatus	US2359645
387508	Van Lin, Oswaldus Anthonius Jacobus & Hoekstra, Johannes	Insulated electric conductor
388980	Kronenberger, Adam & Bartelt, Fritz E.	Automatic aircraft steering device	US2351977
397704	Herzog, Robert & Wiessner, Alfred & Hintze, Rudolf & Gutzmann, Fritz	Radio cables	US2342736
398968	Proos, Cornelis Frederik	Joints for cables for hight tension with oil insulation	US2356614
400858	Lemmens, Hendricus Johannes & Dorgelo, Eduard Gerardus	Electric insulator
408742	Ohnesorge, Wilhelm & Flanze, Gunter & Gladenbeck, Friedrich	Manufacture of cables without lead sheath
412525	Malczewski, Jeremi	Electric circuits	US2369590
438395	Fustier, Pierre	Composite electric conductor

Class 175 - Electricity, general applications

Serial Number	Inventor	Title	Patented
114965	Koppelmann, Floris	Apparatus for interrupting alternating currents	US2351975
171214	Dannohl, Walter & Neumann, Hans	An alloy for permanent magnets	US2347543
198970	Havlicek, Vitezslav & Blaha, Ales	Methods of interrupting alternating electric current
222758	Neumann, Hans & Eler, Hans	Method for manufacturing permanent magnet bodies
237956	Dannohl, Walter & Neumann, Hans	Alloy for permanent magnets
237957	Dannohl, Walter & Neumann, Hans	Alloy for permanent magnets
268641	Patin, Albert	Magnetic device
290306	Eichhorn, Carl Ernst	Electromagnetic oscillating device with freely oscillating armature	US2338909
305982	Tsuno, Shozo	Ozonizers	US2350842
312864	Fahlenbrach, Hermann & Meyer, Hans Heinz	Use of iron-chromium alloys
321318	Hoekstra, Johannes	Method of producing rigid electric windings
323130	Bockler, Martin	Testing devices
324939	Stolojian, Radu	Electro-magnetic coils for telephones and loud-speakers
333469	Martienssen, Oscar	Method and means for determining and tracing insulating, in particular oil-carrying strata
335224	Bergtold, Fritz	High frequency iron core
341170	Bahring, Herbert	Transformer	US2356558
342668	Karpa, Gunter	Rotary condenser of reduced size and high capacity
343083	Bergtold, Fritz	Electric field shielding means
344438	Engler, Otto	Method and apparatus for the demagnetizing of small steel bodies
355599	Deserno, Peter	Arrangements for measuring frequency characteristics	US2356510
360689	Schrader, Walter	Device for indicating contaminations in the oil circulation system	US2349992
362402	Keller, Arnold	Device for compensating the temperature of systems for distant measurement of the number of revolutions	US2347563
362462	Herrmann, Heinrich	Dry rectifiers	US2345122
362878	Miyata, Akira	Electrolytic condensers
362879	Miyata, Akira	Method of making electrolytic condensers
366919	Willers, Theodor	Inductance device
367391	Herrmann, Heinrich	Manufacturing selenium cells
367866	Glorie, Armand	Device for measuring voltages or intensities in very low power circuits
369334	Engler, Otto	Magnetic testing method	US2351944
374627	Carpentier, Pascal	Coil windings
374819	Voigtmann, Walter	Electric condenser	US2335714
377719	Romer, Otto	Polarized relays	US2375586
377720	Romer, Otto	Polarized single-coil relays	US2350825
386274	Brinkmann, Friedrich & Spremann, Fritz	Goniometer coils
387673	Schmidt, Gerhard	Self-interrupters	US2387616
388250	Knol, Kornelis Swier & Strutt, Maximiliaan Julius Otto	Electromagnetic device	US2359224
389310	Herrmann, Werner	Electrolytic condensers
389474	Lieneweg, Fritz	Methods of rendering the indication of electrometric measuring instruments provided with diaphragm electrodes, particularly with glass electrodes, independent of the fluctuations of temperature
391620	Snoek, Jacob Louis & Alons, Luitje	Magnetic system	US2380616
395872	Addink, Nicolaas Willem Hendrik & Ploos van Amstel, Johannes Jacobus Asuerus & Bos, Nicolaas	Method of connecting an electric connecting line, by means of a conductive adhesive, to an electrode of a blocking-layer rectifier which consists of low-melting material	US2381025
395874	de Lange, Cornelis & Boucher, Charles Louis	Blocking-layer rectifier comprising a cooling plate	US2345038
395875	De Lange, Cornelis	Blocking layer cell	US2388532
395893	Maillat, Gustave Ernest	Portable stereoscopic device for checking electric meters	US2371904
397677	Zodtner, Heinrich	Condensers
398524	Willwacher, Erwin & Sammer, Franz	Electric condenser
401131	Herrmann, Heinrich	Dry rectifier devices	US2356588
401518	De Lange, Cornelis & Boucher, Charles Louis	Blocking layer cell unit	US2338907
401786	Zuhlke, Marcel	Arrangement and a method for protecting circuit breakers	US2375609
402530	Barth, Gustav	Means for measuring magnetic fields	US2390051
404984	Schneider, Wilhelm	Electric condenser
410612	Zabelli, Arnaldo	Electromagnetic devices for researching sunken ships, iron containing sands and other metal containing bodies on the sea ground
414410	Schmidt, Werner	Condensers
417210	Dannohl, Walter & Neumann, Hans	Permanent magnets	US2428205
419545	Chireix, Henri	Apparatus for detecting underground lying metallic objects	US2376659
421996	Havlicek, Vitezslav & Blaha, Ales	Apparatus for interrupting alternating current
424754	Leorat, Rene Georges Guy	Protecting devices for networks
428442	Kaschke, Kurt	Iron powder core	US2385578

Class 176 - Electric lamps

Serial Number	Inventor	Title	Patented
242540	Malherbe, Roger Francois Desire Navarre dit	Electric discharge tubes and lamps and their manufacture
278742	Hofmann, Josef & Schreiber, Felix	High pressure mercury vapor lamps	US2342806
285112	Lecorguillier, Jean	Device for starting and feeding electric discharge tubes	US2373402
299434	Anders, Johann	Arrangement for indicating counting or printing, especially for automatic balances inclination balances
305883	Kratky, Anton	Electric lamps	US2348825
308738	Franchini, Charles	Method and device for increasing, on alternating current supply systems, the efficiency of electric lighting installations and for supplying electrical apparatus operating at very low tension
315017	Abadie, Jean Baptiste Joseph Marcel	Luminescent lamp with turbulent discharge	US2411510
401371	Bubenik, Valdislav	Hot electrodes for electric discharge tubes

Class 177 - Electric signaling

Serial Number	Inventor	Title	Patented
177836	List, Walter	Instrument for indicating the position of the various control elements of an airplane
254743	Maillet, Raymond	Method and apparatus for seismic underground prospecting	US2420672
278776	Wellenstein, Robert	Micro-chronometer, in particular for landing altimeters on aircraft for measuring the altitude by means of sound waves by the echo sounding method
282916	Wellenstein, Robert	Micro-chronometer for measuring distances by the echo sounding method	US2415119
285310	Orlich, Peter & Hartz, Hans	Echo-sounding device with arresting indicator	US2384766
287416	Schreuder, Bote	Warning system and apparatus for use with automobiles, motor cycles and similar motor vehicles
308425	Patin, Albert	Measuring instrument
311694	Wellenstein, Robert & Holle, Werner	Device for measuring distances by the echo sounding method
316695	Wellenstein, Robert	Micro-chronometer, especially for measuring distances by the echo sounding method
318190	Bresciani, Carlo	Method of remote control of angular, azimuth, zenith or rectilinear variations, particularly, for compass indication and variation and device embodying said method
326650	Dauvillier, Alexandre & Ponte, Maurice	Fire-alarm systems and in detectors of radio active materials
329575	Schmitt, Karl	Electrical distribution system for vehicles	US2338460
331281	Zuckermann, Armand	Signalling or advertising devices	US2384869
342318	Villem, Raymond	Microphone phase compensators	US2344431
344647	Villem, Raymond	Microphonic transmitter devices in particular for submarine transmission by ultra sounds	US2347584
344790	Kietz, Hans & Schumacher, Martin & Kallmeyer, Friedrich Wilhelm	Device for directed reception of wave motions
365560	Frundt, Hans Joachim & Schonfeld, Wilhelm	Fault indicator device for amplifier tubes (In Queens database under class 250)	US2345042
365647	Orlich, Peter & Negel, Gunther & Hartz, Hans	Echo sounding device	US2361703
366911	Zeininger, Gustav	Electromagnetic signal horn
366912	Zeininger, Gustav	Electromagnetic signal hooter	US2344119
368707	Gottschlich, Johann	Electric bells
380745	Reynst, Maximillien Felix & Rinia, Herre & Stigter, Willem Hendrik & Dorsman, Cornelis	Pressure observer	US2345071
382084	Menges, Karl	Device for directed transmission or reception of wave energy
387780	Dijksterhuis, Pieter Heertje	Device for converting variations of a mechanical quantity into variations of an electric voltage	US2348245
412280	Moulet, Jean Louis Leon Alexandre Albert	Centralized remote control systems for piping networks
419794	Naerbo, Daniel	Automatic signalling apparatus for street crossings etc.	US2371909
440539	Jasse, Raymond Joseph	Electric compenstator for plants for locating sounds

Class 178 - Telegraphy

Serial Number	Inventor	Title	Patented
108062	Toulon, Pierre Marie Gabriel	Picture transmission systems
109507	Barthelemy, Rene	Synchronising appartus for cathode ray oscillographs	US2355135
139213	de Tavy, Lorand	Production of rollers
151347	Urtel, Rudolf	Control circuit
223270	Wolff, Hanns-Heinz	Television method and arrangement for carrying out the same	US2376645
251004	Valensi, Georges	System of television in colours	US2375966
280094	Kuffer, Johannes	Film scanning device	US2387592
297656	Jaumann, Andreas	Short wave oscillatory circuit
298906	Deserno, Peter	Combined television and radio broadcast receivers
326565	Deserno, Peter	Television receivers	US2407654
326567	Dallos, Gyorgy Istvan	Amplitude limiting circuits	US2338412
326605	Heimann, Walter	Television dissectors
337460	Galster, Bernhard & Mansel, Paul & Voigt, Hermann & Wusteney, Herbert	Method of telegraphically trasmitting communication for statistical purposes	US2335404
345002	Nagai, Kenzo & Uemura, Saburo	Filters
348656	Zanarini, Giuseppe	Television apparatus	US2369631
354771	Paehr, Hans Werner	Light modulating screen
357533	Rossberg, Ehrhard	Connection for teleprinters	US2349990
361564	Roosenstein, Hans Otto	Arrangement adapted to suppress radio frequency currents on conductors	US2419855
362388	Kupfmuller, Karl & Reche, Kurt	Telautograph	US2338949
365744	Hennig, Fritz	Telegraphy transmitter	US2340590
366932	Hell, Rudolf	Method of transmitting characters by means of revolving drums	US2335410
366933	Hell, Rudolf	Recording spindles (in Queens University database under class 234)	US2356584
367195	Kohl, Karl	Ultra high frequency cables	US2338441
367936	von Baeyer, Hans Jakob Ritter & Roosenstein, Hans Otto & Tischer, Friedrich	Transmission line	US2343475
375971	Ehrenberg, Gustav	Teleprinters	US2375902
376569	Fulling, Heinrich	Telegraphic transmission of intelligence over submarine cables
381226	Valensi, George	System of television	US2495790
382856	Wusteney, Herbert & Lolkes, Erich	Telegraphic receiving perforators	US2352060
384019	Dallenbach, Walter	Resonance device for ultra-short waves	US2342254
399706	Dallenbach, Walter	Arrangement for ultra short waves	US2437244
405985	Steiner, Otto	Telegraph transmitter	US2352031
405986	Winkelmann, Kurt	Keyboard facsimile transmitter	US2350855
418762	Knick, Ulrich	Compensating arrangement for television tubes (in Queens University database under class 250)	US2371897
428971	de France, Henri	Telecinema transmission device	US2582013
428972	de France, Henri	Telecinema transmission
428973	de France, Henri	Television devices
429584	de France, Henri	Television methods and systems
430569	von Felgel-Farnholz, Richard Ritter	Black spot correcting means	US2375968
431280	Biedermann, Friedrich	Apparatus for the reversal of color photographic negatives	US2374916
455909	de France, Henri	Methods and apparatus for the transmission of signals	US2414453

Class 179 - Telephony

Serial Number	Inventor	Title	Patented
290868	Wormser, Alfred	Call-dials utilized, in particular, in automatic telephony
291620	Schuller, Eduard	Sound reproducer	US2352023
298171	Milde, Rudolf	Sound recording and reproducing devices
312644	Hagen, Wolfgang	Carrier frequency systems
340599	de Kramolin, Leon Ladislas	Arrangement for transmitting messages with the aid of line-directed carrier frequency currents
353974	Becker, Carlheinz	Leveling the characteristics of photographic emulsions	US2365376
354459	Becker, Carlheinz	Producing sound records in half-wave records	US2342239
369684	Geloso, Giovanni	Device for the tight protection of the membrane of loudspeakers and microphones from abnormal and even considerable hight and low pression
374956	Stumpers, Frans Louis Henri Marie & van Geel, Willem Christiaan	Modulator and demodulator systems
375915	Batsch, Helmut	Dynamic microphone
378663	Peters, Curt	Telephone receivers
378894	Pohls, Max	Microphone
379081	Gorisch, Rolf	Methods of producing sound records on films	US2356664
392634	van der Ziel, Aldert & Strutt, Maximiliaan Julius Otto	Push-pull amplifying systems for ultra-high frequencies	US2335820
393526	Moser, Wilhelm	Automatic volume control device	US2363985
395892	van der Meulen, Marius Johannes Cuinirus	Method of recording and reproducing stereophonic sound vibrations	US2336276
396379	Kleen, Werner	Amplifier circuit for ultra-short waves	US2332919
401528	De Boer, Kornelis & Schouten, Jan Frederik	Device for the stereophonic registration, transmission and reproduction of sounds	US2352696
409598	Schaaf, Alexander	Loudspeaker	US2347799
412893	Soldan, Otto	Microphone	US2410528
413380	von Braunmuhl, Hans Joachim Edler & Weber, Walter	Method for magnetic sound recording
417521	Woerner, Friedrich	Method and arrangement for determining undesired modulation in transmitters	US2378612
440102	Marette, Jacques Louis Joseph & Burnat, Henri Louis	Sound reproducing unit for sound-films	US2350786
454870	Courcy, Georges & Durand, Marcel Paul	Mechanical-electrical sound reproducer	US2368003
454871	Courcy, Georges & Durand, Marcel Paul	Mechanical-electrical sound reproducer	US2382692

Class 180 - Motor vehicles

Serial Number	Inventor	Title	Patented
244159	Wagner, Max	Driving mechanism for power driven vehicles with auxiliary speed gearing
260252	Porsche, Ferdinand	Tractor control
368290	Barenyi, Bela	Shock absorption for motor cars with wheels suspended to track altering swinging half-axles
397009	Barenyi, Bela	Resilient connection of a wheel suspension or an axle aggregrate to the frame or the body of a vehicle	US2374911
397812	Mennesson, Marcel	Auxiliary motor devices for driving light vehicles	US2350791
413658	Hitzelberger, Erwin	Device to be used in connection with motor vehicles and adapted to prevent damages of mud guards, headlights and other members of the carriage body of motor vehicles	US2410734
443970	Verots, Pierre & Marquet, Georges	Removable driving equipments for cycles and cycles provided therewith	US2375508
462902	Mennesson, Marcel	Auxiliary devices adapted to drive light vehicles	US2351992

Class 181 - Acoustics

Serial Number	Inventor	Title	Patented
333231	Martin, Herbert	Interference silencer more particularly for internal combustion engines
402549	Tominaga, Masaichi	Sound arrester in the ventilator of sound-arresting room	US239434
409712	Gorike, Rudolf	Electro-acoustic devices

Class 183 - Gas separation

Serial Number	Inventor	Title	Patented
183581	Altenkirch, Edmund	Air conditioning	US2344384
286002	Eckhardt, Vilem & Fiedler, Bohuslav & Voves, Frantisek	Gas mask filters and the like
289710	Natta, Giulio	Process for separating the components of a mixing, having very near boiling points
295140	ter Linden, Adam Johannes	Centrifugal dust separators	US2341671
333698	Jaubert, Georges Francois	Drying plant for gas
358267	Gruss, Heinz	Method of controlling the moisture content of gases to be analyzed
360291	Kiesskalt, Seigfried	Process of adsorbing gases and vapors	US2354383
367293	van Tongeren, Hermannus	Cyclones
388877	Waseige, Charles Raymond	Purifier and oil separating apparatus	US2344068
398268	Seitz, Ludwig	Air filter	US2335456
409905	van Tongeren, Hermannus	Centrifugal dust separators	US2378600
416913	Rath, Kurt & Muller, Otto	Recovery of hydrocarbons from chlorination waste gases of hydrocarbons

Class 184 - Lubrication

Serial Number	Inventor	Title	Patented
172755	Nallinger, Fritz	Pumping system
207115	Waseige, Charles Raymond	Mounting of accessories on an aircraft
246211	Piquerez, Emile	Lubrication of aero and other engines	US2326167
373101	Nemetz, Gustav	Pressure lubricating system	US2516244
398267	Seitz, Ludwig	Internal combustion engine
443965	Waseige, Charles Raymond	Multi-drive gear box	US2410849

Class 185 - Motors

Serial Number	Inventor	Title	Patented
390857	Goiot, Jean Roger	Starting device for internal combustion engines	US2338929

Class 188 - Brakes

Serial Number	Inventor	Title	Patented
303885	Cupper, Oscar	Oscillation absorbers
336290	Zipper, Emil	Brakes	US2376889
340223	Zollner, Hans	Combined carbon and metal holder body
350452	Hartmann, Josef	Hydraulic brake for power driven vehicles
362677	Pagliano, Giuseppe	One way clutch arrangement
381164	Zenz, Wilhelm	Hydraulic schock absorbers	US2352063
384985	Sorensen, Christian	Binding clamp to hold a line wound on to a roll	US2338385
443791	Perrot, Henri	Brakes	US2418848

Class189 - Metallic building structures

Serial Number	Inventor	Title	Patented
319098	Faure, Andre & Faure, Antoine	Portable building structures	US2330819
335199	Behin, Raymond	Process and means for the construction of houses with standard panelling	US2424547
369500	Cantacuzene, Georges Servan	Demountable hangar for aeroplanes and seaplanes
411588	Merlini, Gerolamo & Giorza, Clemente	System for joining parts of metallic structures to each other
412904	Bender, Karl	Compression resistant chains	US2375461
412905	Bender, Karl	Compression resistant group of flat link chains	US2375462
414002	Groetschel, Karl Maria	Semi-tubular section with lateral flanges for use in mine gallery framing

Class 190 - Baggage

Serial Number	Inventor	Title	Patented
342563	Hamon, Jean	Folding trunks and the like

Class 191 - Electricity, transmission to vehicles

Serial Number	Inventor	Title	Patented
309108	Conradty, Ottmar	Overhead contact hoop
407804	Szalay, Ferenc	Current collectors for electric vehicles	US2382751

Class 192 - Clutches and power-stop control

Serial Number	Inventor	Title	Patented
196718	Nallinger, Fritz & Berger, Arthur	Liquid clutch transmission	US2385834
276464	Maybach, Karl	Power operated clutch mechanism for motor vehicles
305991	Ryba, Anton	Electromagnetic multiple-disc clutch	US2344111
308479	Ryba, Anton	Electromagnetic multiple-disc clutch	US2387613
314170	Ryba, Anton	Electromagnetic multiple-disc clutch	US2378108
322595	Maier, Albert & Gutmann, Fritz	Electro-magnetic clutches
352808	Guter, August & Maier, Albert	Claw couplings with synchronizing device	US2338428
362883	Wittkop, Elmar	Centrifugal couplings	US2338476
365454	Branda, Baptistin	Transmission devices with single direction of rotation, for large dirving couples, combined with hight frequencies of action and high speeds
368679	Nallinger, Fritz	Drive of loading blowers, particularly loading blowers for aircraft motors
374724	Walther, August	Electrical drive for wheel type presses or the like	US2335467
374882	Fuchs, Rudolf	Clutch for automobiles	US2350745
377862	Fiedler, Fritz	Automative centrifugal clutch
400817	Maybach, Karl	Transmissions and means for operating the same
402024	Kattwinkel, Hans	Clutch, especially for motor cars with control change mechanism	US2368304
431207	Durand, Marcel Paul	Balanced control for cycle brakes	US2342795

Class 194 - Check-controlled apparatus

Serial Number	Inventor	Title	Patented
309215	Beria, Biagio	Ticket delivering machine
309917	Petersen, Johannes	Disconnecting gear for vending machines
332117	Alfano, Antonino	Automatic distributors of goods

Class 195 - Chemistry, fermentation

Serial Number	Inventor	Title	Patented
267167	Nagao, Kinya	Yeasty remedy and method of preparing the same
308290	Kanhauser, Frantisek & Streubel, Josef	Preparation of nourishing solutions for the production of citric acid by the fermentation method
331454	Heyns, Kurt	Process for the production of alcohol by fermentation of sulfite waste liquor or wood-sugar mash
336304	Schwaneberg, Herbert	Process for the manufacture of alkaline earth metal salts of adenosine polyphosphoric acids	US2342760
367299	Grandel, Felix	Process of producing bios- and albumen-preparations
367301	Grandel, Felix	Process of preparing pentone acids and their salts	US2356581
413551	Roxas, Manuel L.	Processes for treating bagasse
458607	Naldi, Philippe	Fermenting process
458608	Naldi, Philippe	Method of manufacturing fatty acids and their derivatives by fermentation of cellulose-like hydrolysates
458609	Naldi, Philippe	Method of manufacturing fatty acids, aledehydes, cetones and alcohols
458610	Naldi, Philippe	Lacto-butyric and cellulosolytic fermentation of liquors residual in the manufacture of paper paste

Class 196 - Mineral oils

Serial Number	Inventor	Title	Patented
46912	van Dijck, Willem J. D.	Extraction process
60192	Martin, Friedrich & Tramm, Heinrich	Production of liquid fuel	US2368939
147090	Mironescu, Alexander	Process and apparatus for the production of anti-knock benzines and aromatic hydrocarbons
210424	Clar, Carl & Kuhnel, Paul & Geiber, Nikolaus	Dechlorination of hydrocarbon mixtures	US2328707
254505	Schick, Friedrich	Refaffination of mineral oils and tars
266187	Isobe, Hajime	Process of manufacturing petroleum-like oil by dry distillation of a carbonaceous material
280054	Martin, Friedrich & Gottschall, Wilhelm & Velde, Hermann	Benzine hydrocarbons of increased knock-proof
280055	Martin, Friedrich & Gottschall, Wilhelm & Velde, Hermann	Refining of benzine hydrocarbons	US2422627
330613	Woog, Paul	Treatment of hydrocarbons	US2352059
338288	Terres, Ernst & Saegebarth, Erich & Moos, Joseph	Solvent treatment of naphthas and the like
345366	Michael, Wilhelm & Goehre, O)tto & Free, Gerhard & Fuener, Wilhelm von & Schneider, Wilhelm	Process for the thermal treatment of carbonaceous material	US2500197
369332	Hoppe, Alfred	Process for the removal of gases from mineral oil refining plants which operate with liquified, at normal temperature gaseous solvents
380914	Wolfner, Alfred Samuel	Process for controlling fractionation	US2350006
384740	Free, Gerhard & von Fuener, Wilhelm	Process for the production of hydrocarbons from carbonaceous materials, especially by cracking hydrocarbon oils	US2334872
389038	Stoewener, Fritz (by administratrix, Stoewener, Hedwig Elisabeth) & Keunecke, Emil & Becke, Friedrich	Catalytic reactions with carbonaceous materials	US2337944
390534	Pier, Mathias & Free, Gerhard	Conversion of combustible carbonaceous materials
392114	Pier, Mathias & Free, Gerhard	Catalytic cracking of hydrocarbons	US2343472
399555	Zerbe, Carl	Refining mineral oil	US2352064

Class 197 - Typewriting machines

Serial Number	Inventor	Title	Patented
306390	Dronigke, Erich & Schuler, Hugo	Drive mechanism for office machines	US2337233
313429	Willheim, Francois	Typewriting machines	US2349483
328090	Hofgaard, Rolf	Type for typewriting machines, perforation or printing as well as interpretation system for characters	US2350893
363851	Pascher, Leopold Ferdinand	Type writing machines	US2343321
367134	Kniehahn, Werner	Device for automatically inserting and adjusting sheets of paper in typing or printing machines	US2350773
374907	Wusteney, Herbert	Devices for producing storing tapes for telegraph transmitters
376398	Wunderlich, Friedrich	Typewriting machine with covering hood adapted to be folded up	US2344118
403628	Leger, Bernhard & Dussaillant, Francois & Bessiere, Fernand & Boyer, Fernand	Tabulating machines or the like
411428	Frohlich, Alfred	Ink ribbon for typing-calculating machines and the like

Class 198 - Conveyors, power driven

Serial Number	Inventor	Title	Patented
330212	Aumund, Heinrich	Conveyers
352164	Aasted, Kai Christian Sophus	Converyor mechanism for use in connection with machines for casting chocolate and the like	US2359070
359123	Messinese, Giovanni	Oblate fruit peeling machine	US2382732
368952	Cramer, Hans	Apparatus for delivering rolling material from the cooling bed onto the discharging live roll gear beds	US2392523
378719.5	Kittler, Georg	Apparatus for the mechanical loading of beetroots on the field into the dray	US2378144
469106	Marchand, Jean Joseph Martin Lambert	Conveying apparatus with endless chain more particularly for the mechanical distributing and sorting of letters, documents or similar articles	US2416398
470616	Bardet, Gerard	Device for feeding machines for packing tubular products	US2376651

Class 199 - Type casting

Serial Number	Inventor	Title	Patented
462098	Souche, Fernand Charles	Automatic line centering and shifting device for type setting machines	US2392558

Class 200 - Electricity, circuit makers and breakers

Serial Number	Inventor	Title	Patented
187354	Reutter, Jean-Leon	Heat engines operating with two different fluids which are subjected to the same temperatures and novel applications of said engines	US2335886
214489	Fernier, Bernard Marie Hilaire Paul	Electric circuit breakers with compressed fluid blow out	US2343917
219932	Kesselring, Fritz & Gieffers, Friedrich & Kaufmann, Werner	Circuit breakers	US2387589
287348	Fernier, Bernard Marie Hilaire Paul	Electric circuit-breakers with compressed fluid blow out	US2330820
291401	Menzel, Friedrich	Control device for electrical lighting installations on vehicles
293586	Hinnerfeldt, Einer Eiby Andersen	Permutation and alarm clocks	US2344088
297366	Bartels, Hans	Vibrator
297979	Braunschweig, Werner	Contact for vibrators
303854	Peterreins, Hans	Electric multiple-way switch
311314	Leifer, Alfred & Schilgen, Friedrig	Vibrating converter	US2357834
322436	Leifer, Alfred	Vibratory system
333867	Languepin, Jacques Emile Jules	Resistance electric welding machines
342569	Bresson, Charle	Electric circuit breakers	US2414796
373780	Hildebrand, Paul & Metz, Artur	Setting device on mechanical and electric measuring instruments	US2407154
374599	Conradty, Ottmar & Zollner, Hans	Switching device	US2335388
380962	D'Arbela, Alfredo	Interrupter or electric current interrupter auxiliary device with a counter electromotive force generator
388078	Leifer, Alfred & Weihs, Helmut	Chopper
388753	Kesselring, Fritz	Device for interrupting overloads	US2338946
415288	Stegelitz, Hans & Schreiner, Wilhelm	Circuit breaker fluid pressure operated system
428360	Ziegel, Olivier	Electric fuses	US2342320
460231	Estienne, Aime	Circuit breakers	US2382703
463172	Fernier, Bernard Marie Hilaire Paul	Blowing gas self generating breakers	US2430008

Class 201 - Resistances and rheostats

Serial Number	Inventor	Title	Patented
297760	Kunzer, Heinrich	Gryoscopic instrument	US2367465
328680	Menz, Hermann & Heldt, Hermann	Method and apparatus for the production of boiling-proof mouth- and operation mirrors with employment of a re-shapable support for heating wires
330201	Doetsch, Ernst	Resistance system
339725	Schade, Rudolf	Variable resistors	US2338458
346060	Klein, Gerald	Method of manufacturing finely graded spiral electric resistors
351556	Biefeld, Karl	Process of improving the plastification of non-metallic electric resistance materials	US2340506
353321	Gieffers, Friedrich	Variable resistors	US2359757
355299	Gieffers, Friedrich	Variable resistors	US2356512
371843	Puttfarcken, Wilhelm	Device for controlling power circuits	US2347612
371844	Kesselring, Fritz & Puttfarcken, Wilhelm	Device for controlling power circuits	US2359563
373689	Guinot, Henri Martin	Dehydration of acetic acid by azeotropic distillation	US2412215
377578	Biefeld, Karl	Nonmetallic electric resistance material and process for producing same	US2370443
378542	Kehse, Wolfgang	Electric current regulator with pressure loaded carbon-pile column	US2403534
392280	Gieffers, Friedrich	Devices for controlling power circuits

Class 202 - Distillation

Serial Number	Inventor	Title	Patented
281718	Konigstein, Ernest	Process and apparatus for obtaining glycerine from distillery slops or spent wash
320951	Schafer, Josef	Coke ovens	US2387615
360502	Herrmann, Willy O. & Deutsch, Hans & Kalb, Eduard	Method of increasing the inclination of vinyl acetate to polymerize
365336	Kuhne, Otto	Method of making and applying a filtering material
382694	Dierichs, Alfred	Recovery of extraction agents
400988	Philipsen, Nikolaus M.	Regenerative coke ovens	US2350813
403046	von Keussler, Otto	Process of continously purifying and separating a mixture of higher alcohols by distillation	US2392534
409101	Guignard, Edwin M.F.	Apparatus for continuous fractional distillation	US2385074

Class 204 - Chemistry, electrical and wave energy

Serial Number	Inventor	Title	Patented
101344	Lakhovsky, Georges	Apparatus for the sterilization of water and other liquids
139606	Kremers, Karl & Hofmann, Heinz G.	Method of producing albumin of whey
144078	Busico, Umberto	Process of separation by electrolysis of the organic acids and salts from albuminoids and their accompanying pectic substances
150309	Nagata, Kenzo	Process of making aluminium or its alloys anti-corrosive and coloring the same
173206	Kruse, Walter & Fischer, Maximilian Johann	Treatment of medically applicable salt solutions with electric currents of low voltage for the purpose of sterilization and disinfection
177304	Hongo, Hajime	Process of forming acid-proof coating on aluminum metal or aluminum alloy
201844	Deutsch, Walther	Process of and apparatus for the electrical separation of emulsions	US2382697
203242	Gottesmann, Uscha & Hirsch, Lowenstein	Electrolytic production of manganese compounds	US2424392
210426	Hansel, Gunther & Passer, Michael	Process for reducing the rapidity of the reaction of zinc dust
214954	Wolf, Hermann & Kuss, Ernst & Hohn, Hans & Stietzel, Fritz	Process for the manufacture of zinc
216289	Hansel, Gunther	Method for electrolytically refining copper and its alloys
227770	Hahn, Carl & Feldmann, Wilhelm	Electric separation of emulsions
228143	Mannchen, Walter	Method of producing coatings on magnesium or its alloys
230090	Durr, Friedrich	Method and device for the electrolytic oxidation of thin wires	US2349946
231799	Munekata, Eiji	Electrolytic apparatus for producing a hydroxide of metal
233139	Berghaus, Bernhard & Burkhardt, Wilhelm	Method of metallising articles by means of cathode disintegration
233325	Beck, Richard	Process for the improvement of the electrical properties of solutions
234571	Geffcken, Walter	Glass electrodes
235888	Rzymkowski, Johannes	Development of photographic layers
235974	Krell, Wilhelm	Apparatus for chromium plating the interior faces of hollow objects
237710	Grosse, Karl & Schlicht, Gunther	Treatment of oil-sand and like mixtures
238976	Krause, Ernst & Schroder, Ernst	Coating of objects of magnesium or the like with oxices	US2348826
245310	Lowenstein, Leo	Process for preparing arsenates by anodic oxidation of salts of arsenious acid	US2375933
245780	Frasch, Jean	Process for protecting articles made of light metals	US2364964
246063	Kuss, Ernst & Hohn, Hans & Stietzel, Fritz	Process of preparing zinc and chlorine	US2337475
253939	Trinius, Werner	Apparatus for obtaining persalts, e.g. persulphates, by electrolysis	US2349998
254376	Salles, Pierre Max Raoul	Process for the electrolytic production of neutral hypochlorinated solutions, means and apparatus used and new products obtained
257762	Frasch, Jean	Process for the protection of magnesium-base metals	US2338924
258583	Lisiecki, Juliusz	Method of obtaining aluminium from clay
262800	Wolff, Hermann	Apparatus for producing water-taking layers on both surfaces of light-metal foils
263378	Elssner, Gerhard & Schroder, Ernst	Process for the production of oxidic protective coatings on magnesium or magnesium alloys
267206	Elssner, Gerhard & Schroder, Ernst	Process for the making compact, impregnating and/or dyeing of oxidic protective layers on magnesium and its alloys
267207	Elssner, Gerhard & Schroder, Ernst	Process for the production of oxidic protective layers on magnesium or its alloys
268694	Berthier, Rene Marie	Process for producing a protecting layer against corrosion on the surface of metals or alloys
276706	Grandel, Felix	Process and apparatus for the production of high value alcohols from sugars and sugary substances
283312	Berghaus, Bernhard & Burkhardt, Wilhelm	Purification of gases	US2342784
288035	Rudolph, Hans	Process for carrying out electrolyses
290026	Weiner, Robert	Device for supporting articles in galvanic baths and the like
291590	Berghaus, Bernhard & Burkhardt, Wilhelm	Method of coating articles by cathode disintegration
297191	Frasch, Jean	Process for the protection of magnesium and its alloys
302054	Huber, Hugo & Bauer, Paul & Jauch, Otto	Method of producing protective layers on magnesium and magnesium alloys
303336	Rummel, Theodor	Polymerizing apparatus
313281	Saheurs, Albert Gaston	Process and apparatuses for the regeneration of a liquid of other applications
318328	Eichwald, Egon	Process for manufacturing viscous products suitable for lubrication
321349	Lequerler, Gustave	Porous partitions for storage batteries and electric cells
322422	Weinberger, Theodor	Device for conveying wires through cleaning, pickling or plating baths
323139	Kramli, Andreas & Vargha, Laszlo	Process for the production of unsaturated ketonalcohols of the cyclopentano-polyhidro-phenantrene series	US2356596
323695	Dupuis, Jules	Plated articles and method of producing same	US2351940
326494	Frasch, Jean	Process for the treatment of metals by means of galvanic current in which the metal to be protected serves as cathode	US2356575
326495	Frasch, Jean	Process for the protection of metals and alloys
326756	Ott, Friedrich	Process for the improvement of electrical contact conductivity in apparatus for electrolysis of fused salts
331456	Weiner, Robert	Electroplating baths for the electrodeposition of brass, copper, zinc, cadmium
334067	Takayama, Yoshitaro	Method of manufacturing succinic acid	US2338466
335549	Bojinescu, Alexandru & Plonski, Ion	Method of and apparatus for sterilising liquid foodstuffs
338261	Rzymokowski, Johannes	Method of developing photographic metal salt layers
340362	Weiner, Robert	Electrodeposition of metallic coatings
340402	Grothe, Hans	Method of electrolytically obtaining magnesium
340856	Barbier, Andre Jean	Apparatus for the electronic treatment of liquids
346872	Weber, Karl & Bode, Georg	Cloths for electrochemical diaphragms	US2342230
349437	Sledzianowski, Franz	Production of hydrogen by electrolysis	US2356541
351241	Weiner, Robert	Electroplating bath
352416	Sonnio, Carlo & Sassetti, Antonio	Process for the electrolytic production of opaque layers, similar to enamel, on aluminium and its alloys	US2356543
354622	Sakamoto, Yutaka	Method of manufacturing hollow propeller blade for aircraft
355522	Howaldt, Wolfgang & Halfen, Rudolf	Process for electrolytically producing bright deposits of zinc on other metals for example on iron
356108	Machu, Willibald & Ungersbock, Oskar	Method for decreasing or preventing the actions of picking acid on metals, especially iron-and metal-alloys
362843	Feledi, Bela	Electrolytic cells
363564	Raydt, Ulrich & Staubwasser, Karl	Method and apparatus for plating tubes
368084	Ciccotti, Guglielmo	Electronic water purifier for avoiding incrustations
369610	Helling, Werner & Bull-Simonsen, Ivar	Refining aluminium
369618	Sassetti, Antonio & Sonnino, Carlo	Bath for the anodic oxydation of aluminium and its alloys for obtaining very hard and tough films
383003	Hilpert, Alfred	Metallic corrosion protection
387252	Guterman, Georges Gedal	Process for attacking aluminium for increasing its working surface and apparatus therefor
390374	Beck, Richard	Process for driving out occlusions of gases like hydrogen from the surface layers of work-pieces	US2421863
395317	Woitscheck, Arno	Method of and device for producing sound band matrices	US2385595
395318	Woitscheck, Arno	Method of and device for producing matrices from mechanically recorded sound bands	US2356639
402242	Bellone, Alfred Felix Sebastien	Method of manufacturing artificial bioxides of manganese
411429	Guareschi, Pietro	Methods for purifying manganese in metal state	US2396570
411430	Guareschi, Pietro	Methods for producing manganese in metal state and pure manganese dioxide if desided, from manganese ores	US2356515
414022	Achille, Pietro	Electrolytic system
425186	Bary, Jean	Processes for machining light metals and alloys
436280	Couelle, Jacques & Costin, Dimitri	Electric apparatus simultaneously producing dissocation of water into hydrogen and oxygen, fixation of oxygen and the utilization of hydrogen as combustible
439590	Schick, Friedrich	Process for the manufacture of improved oils, particularly such as are stable during storage and at increased temperature

Class 205 - Metal drawing

Serial Number	Inventor	Title	Patented
296471	Schottle, Karl	Wrenches

Class 206 - Special receptacles and packages

Serial Number	Inventor	Title	Patented
206498	Nicolle, Charles	Plastic material wrappers	US2358246
279576	Taesler, Rudolf	Film magazines and containers
343141	Daniel, Karl	Cases for sound films	US2341600
413022	van den Dool, Berend Jan	Pill boxes	US2356632

Class 207 - Plastic metal working

Serial Number	Inventor	Title	Patented
362833	Hanff, Ferdinand	Press for manufacturing tubes, rods or the like
384913	Hyprath, Walter	Extrusion devices for the manufacture of cable sheaths	US2385574

Class 209 -  Classifying, separating, and assorting solids

Serial Number	Inventor	Title	Patented
147610	de Fligue, Wladimir	Separator	US2361758
246483	Osawa, Hirosaburo	Process for dressing coals or similar substances
263546	Stelkens, Willy	Process for the treatment of siliceous iron-containing materials
274857	Goette, August	Process for wet mechanical separation of raw materials
274858	Goette, August	Process for the flotation of fluor spar
302463	Goette, August	Process for the flotation of non sulfidic conglomerations
304154	Sigwart, Karl	Magentic separator
307990	Osawa, Hirosaburo	Process for dressing coals by employing an aqueous heavy suspension produced from silt
315426	Schouten, Cornelis	Processes and apparatus for separating loose masses	US2341662
335078	Tromp, Klaas F.	Apparatus for separating solid materials having different specific gravities by means of a suspension	US2365734
336307	Dichter, Jakob	Sorting machines	US2355280
345246	Veglio, Felice Enrico	Magentic separators
373832	Kuhlwein, Friedrich Ludwig	Process for obtaining coal particularly poor in ash content	US2376703
381904	Grandel, Felix & von Gimborn, Karl & Akens, Bernhard	Sifting apparatus for the separation of maize husks from maize seed and similar mixtures
394227	Drenker, Josef	Separating the cocoa seed from the cocoa bean	US2338376
395497	Wiesler, Karl	Froth flotation process
395498	Wiesler, Karl	Froth flotation process
395499	Wiesler, Karl	Froth flotation process
414979	Gotte, August	Froth flotation

Class 210 - Liquid separation or purification

Serial Number	Inventor	Title	Patented
136429	Netzel, Gustav	Taking-off devices for suction filters
161690	Desroches, Eugene Joseph	Purification of water
183454	Harz, Walter & Rein, Herbert & Hubert, Emil & Kayser, Carl	Filter material	US2324838
192177	Bottaro, Giacomo	Process and apparatus for the reclaiming of used lubricating oils	US2368636
213689	Desroches, Eugene Joseph	Process and means for purifying water
216342	Hermes, Karl	Softening feed water for boilers	US2356405
244582	Kooy, Gerrit Willem van Barneveld	Device for the continuous dialysis in counter-current of liquids containing substances in a colloidal state
274067	Kaufmann, Hans Paul	Process for fractioning mixtures of fatty acids and/or esters of fatty acids
274068	Kaufmann, Hans Paul	Process for refining and improving fats and simultaneously separating the accompanying substances therefrom
276020	Bornemann, Ferdinand & Huber, Hans	Washing, detergent and softening agents
279533	Simkovitz, Sandor	Apparatus for the purification of liquids	US2378737
292382	Banning, Helmuth	Method of and apparatus for the continuous purification of suspensions or sludges, especially of fibrous pulps of the paper industry	US2356497
303853	Schreiber, August	Methods and means for purifying sewage and the like	US2348854
306199	Beier, Helmut	Process for the disposal of waste cyanide solutions
309110	Perogio, Elio Adolfo	Process for drying by centrifugal action of juicy materials with particular regard to olives
310261	Jansen, Max Petrus Jozef Maria	Process for the separation of yeast from yeast suspensions	US2351970
311682	Gotte, August	Method of separating slimes containing fibrous materials
383062	Jodeck, Paul & Fischer, Karl & Grote, Wolfgang	Gaslight housing for filters
395894	Schmid, Walter & Schuh, Karl Hermann	Dialyzing diaphragm	US2339885
434619	Schonaich, Friedrich	Process for the prevention of calcium carbonate deposition in water

Class 212 - Traversing hoists

Serial Number	Inventor	Title	Patented
462078	Faure, Andre & Fure, Antoine	Crane	US2413701
474325	Allard, Pierre Jean-Marie Theodore	Devices for lowering a load	US2359073
474326	Allard, Pierre Jean-Marie Theodore	Counterweight control systems for lifing device crabs	US2371865

Class 214 - Material or article handling

Serial Number	Inventor	Title	Patented
373295	Koppers, Heinrich	Pusher rams for coke ovens	US2354030
376394	Hetz, Alfred	Apparatus for the automatic putting on dipping plates stylus or other rod-shaped works	US2344087

Class 215 - Bottles and jars

Serial Number	Inventor	Title	Patented
253936	Schade, Arno	Germ-proof closures for containers
264425	Takahashi, Kotaro	Lidded vessels
274832	Netalova, Anna & Wolfova, Antonie	Bottle closure	US2354043
275201	Meurer, Nikolaus	Bottle closing device
377847	Hirsch, Robert	Closed capacities
388867	Knoll, Hans	Closing device for organism culture vessels
436532	Ottenstein, Friedrich	Bottleclosure of the crown-cork type and sealing disc for the same	US2404741

Class 218 - Button, eyelet, and rivet setting

Serial Number	Inventor	Title	Patented
268414	Cucchi, Adamo & Maznzini, Giuseppe	Method for inside riveting by means of hollow rivets and means for achieving the same	US2374079
286712	Chobert, Jacques Francois Gabriel	Methods of fixing tubular rivets
286713	Chobert, Jacques Francois Gabriel	Methods of fixing tubular rivets
406071	Gobin dit Daude, Jean Emile Francois	Riveted joints	US2376684
406072	Gobin dit Daude, Jean Emile Francois	Riveted joints	US2378546

Class 219 - Electric heating

Serial Number	Inventor	Title	Patented
152008	Heim, Gerhard	Device for connecting sheet metal members	US2376692
232236	Berghaus, Bernhard & Burkhardt, Wilhelm	Process for heating solid, liquid or gaseous bodies
232237	Berghaus, Bernhard	Electrically heated vacuum annealing and fusion furnace for metallic and non-metallic material
317610	Mossin, Georg Barth	Electrical heating devices
324000	Catalani, Giusto	Heating system
344220	Sciaky, David	Method and apparatus for electric resistance welding of tubes
369882	Iseki, Takeshi	Process of manufacturing a built-up permanent magnet	US2392592
377905	Cito, Camille	Welding rod, and in particular electrode for electric arc welding	US2350387
378076	Hagedorn, Gerhard	Method of and device for electric resistance welding
378465	Hagedorn, Gerhard	Method of and device for electric resistance welding	US2382711
380728	Penning, Frans Michel	Electric device and method for heating materials	US2431887
387342	Gumprecht, Herbert Jan Oskar	Arrangement for the high-frequent heating of band-shaped metal, especially for the production brasses
412345	Descarsin, Maurice	Electrical heating of articles made of glass or other vitreous material	US2385567
463175	Brandl, Willi	Water heater	US2369526

Class 220 - Metallic receptacles

Serial Number	Inventor	Title	Patented
238039	von Schwarz, Maximilian	Seamless drum for use in high-pressure boilers and the like
242591	Mauser, Alfons	Closure for containers
304414	Kopf, Emil & Wasmuht, Roland	High pressure container
310770	Bagnato, Giuseppe	Closure device for boxes and the like
333240	Schmuckler, Hans, by Grimpe, Walter, Executor	Polygonal tank
337853	Hintze, Rudolf	Refrigerator boxes
340456	Blau, Jr., Richard & Blau, Werner	Closure devices
348520	Grabener, Heinz	Closures for containers	US2382051
373033	Johnsen, Birger	Opening tins and other containers	US2351971
375071	Hintze, Rudolf	Refrigerator cabinets
412522	Limm, King Theodoor	Packing in tins

Class 221 - Dispensing

Serial Number	Inventor	Title	Patented
307509	van der Plas, Frederik	Coin-watermeter	US2358268
326088	Camfens, Cornelis Josef & Dalstra, Hendrik	Device for expelling the contents of a tube for liquid, semi-liquid or plastic substances	US2379475
356770	de Kadt, Louis	Packing for fluids	US2379475

Class 223 - Apparel apparatus

Serial Number	Inventor	Title	Patented
365712	Basener, Willi	Coat-hanger with sinking-bow
470622	Germain, Georges	Method and device for making the points of collars, detachable collars, cuffs and the like	US2478095

Class 224 - Packing and article carriers

Serial Number	Inventor	Title	Patented
347271	Torcheux, Emile	Carrying system

Class 226 - Filling and closing portable receptacles

Serial Number	Inventor	Title	Patented
265334	Lewin, Herman	Method of attaching closure caps
268442	Nicolle, Charles Alexandre	Packing machines	US2363014
297010	Kjaegaard-Jensen, Niels & Jensen, Harald & Hedemann, Hugo	Method of filing butter into receptacles
314513	Piquerez, Emile	Filling limiters	US2326251
315260	Popov, Valdimir Dimitrijevic	Means for conveying materials from one machine to another	US2378579
326558	de Milleville, Marie Joseph Maurice	Method and apparatus for filing containers	US2382696

Class 229 - Paper receptacles

Serial Number	Inventor	Title	Patented
260391	Lehmann, Harry	Paper container, method for tight sealing a paper container and blank for paper container	US2344359
263139	Samuel, Andre Albert	Powder box having a hermetic and inviolable closure
269063	Rambold, Adolf	Bag
291094	Schoeller, Ewald	Paper container
296723	Holzapfel, Eberhard	Sealing means for valve bags
333243	Rambold, Adolf	Bag with insoluble, automatic fold closing	US2409314
335634	Gerendas, Miksa	Closing and clamping device	US2338927
400879	Rambold, Adolf	Bag
474373	Faillot, Rene	Packing bags	US2375544

Class 230 - Gas pumps and fans

Serial Number	Inventor	Title	Patented
205992	Stiegltiz, Albert	Regulating devices for superchargers of internal combustion engines	US2356124
227468	Egersdorfer, Fritz	Internal combustion engines
290346	Ferre, Ferdinando	Manufacture of centrifugal fans	US2350739
321834	Heimbach, Bruno	Impeller blower of the rotary piston type	US2367463
328949	Magis, Auguste Adelin Gustave	Single action high speed multi-cylinder pumps	US2359486
342342	Jde, Hans	Automatic control of the supply of breating air to the super-pressure cabins in altitude aeroplanes	US2350896
344165	Baj, Alessandro	Centrifugal supercharges for internal combustion engines
373839	Dardelet, Robert Leon	Compression or depression pumps of the liquid ring type	US2344396
377704	Weimar, Wilhelm	Multi-stage compressors	US2361726
382106	Waseige, Charles Raymond	Plants for distributing air under pressure and in constituting parts thereof	US2345082
382283	Szydlowski, Josef	Machines for compressing gases by centrifugal effect	US2350839
382284	Szydlowski, Josef	Machines for displacing and compressing fluids, such as turbo-compressors for feeding aircraft engines	US2397060
391000	van der Heem, Jan	Electric vacuum cleaner
412528	Malczewski, Jeremi	Construction of turbo-machines
416566	Waseige, Charles Raymond	Pneumatic drive of the gyroscopes on board aircraft
418666	Mullejans, Paul & Neugebauer, Franz	Starter for free piston motor compressors	US2423720
420283	Jandrassik, George	Compressor plant and method for regulating the quantity of working fluid delivered thereby
428380	Planche, Benjamin Rene	Gas compressing plant	US2350815
430814	Esnault-Pelterie, Robert	Processes for the production of heat or cold by means of a thermal pump with pistons and to thermal pumps for the working of these processes
443966	Waseige, Charles Raymond	Production of compressed air on board aircraft	US2421398
470629	Waseige, Charles Raymond	Rotary vane pumps	US2387629

Class 233 - Centrifugal-bowl separators

Serial Number	Inventor	Title	Patented
194265	Banning, Hellmuth	Purification of pulp	US2353983
372013	Wilsmann, Wilhelm	Separator	US2376744

Class 234 - Recorders

Serial Number	Inventor	Title	Patented
257685	Riegger, Paul	Instruments for supervising the running of power driven vehicles
285684	Komusin, Erich	Printing apparatus
291698	Toth, Sandor	Devices for the numerical fixing of the measuring figure of measuring instruments, particularly of pairs of scales	US2382752
306027	Sessler, Alfred	Printing device for scales
308278	Hahn, Arthur	Printing device for scales
309053	Kaiser, Heinrich	Arrangement for photographically recording variable processes
338695	Rodanet, Charles Hilaire Henri	Apparatus for recording the speed of a vehicle	US2341118
352111	Fornbacher, Franz	Recording speed indicator
366933	Hell, Rudolf	Recording spindle	US2356584
386196	Sarazin, Robert	Apparatus for permanenetly checking the work of operators	US2496313
416911	Jacobi, Ernst	Apparatus for recording of rapidly varying processes	US2477062

Class 235 - Registers

Serial Number	Inventor	Title	Patented
86664	Mez, Erich & Pott, Friedrich & Heinze, Werner	Process for the registration of business transactions	US2390163
135324	Kammel, Hugo	Register moved by the paper carriage
146302	Somieski, Kurt & Dietzel, Emil	Adding machine
146897	Anschutz, Robert	Total-taking mechanism for automatic clear writing of totalizing mechanism
172446	Eichler, Ulrich	Calculating and registering machine	US2340261
182336	Pott, August Friedrich	Calculating machines, cash registers or the like
209832	Mezger, Fritz	Process and device for electrical calculation
212349	Papello, Karl	Apparatus for determining the magnitudes required for parallax correction	US2376719
219076	Anschutz, Robert & Schmidt, Fritz	Total-taking mechanism
219078	Anschutz, Robert & Groschel, Richard	Calculating machine
224630	Kiel, Karl Berthold Wilhelm	Adding machine
227220	Ewald, Heinrich Konrad Friedrich & Gebhardt, Johannes	Accounting machines
234006	Schuler, Hugo & Gruttner, Hans & Dronigke, Erich	Calculating typewriters
241672	Anschutz, Robert	Typewriting calculating machines, booking machines, and similar machines
251634	Anschutz, Robert & Merz, August	Typewriting-calculating machines with total taking mechanism, and to similar machines
259030	Kammel, Hugo Ernst	Complementary totaliser
262519	Raimondi, Angelo	Calculating machines
262552	Kiel, Karl Berthold Wilhelm	Calculating machine
269265	Mezger, Fritz	Electrical calculating apparatus
279077	Sobisch, Johannes	Decadic keying mechanism for accounting machines or the like
282870	Knutsen, Knut Andreas	Perforated cards in connection with tabulating machines
285733	Maul, Michael	Control element for statistical machines
287630	Demeulenaere, Marcel	Computing mechanisms for cash registers and the like
287668	Kammel, Hugo Ernst	Coupling device for typewriting calculating machines
287669	Kammel, Hugo Ernst	Locking mechanism for typewriting calculating machines
287671	Kammel, Hugo Ernst	Register for typewriting calculating machines
287672	Kammel, Hugo Ernst	Total taking device for automatically taking totals for typewriting calculating machines
288057	Eichler, Ulrich	Calculating machines
288964	Ohmoto, Torajiro	Displacing device for the numeral wheel carriage in a rotary calculating machine
288965	Ohmoto, Torajiro	Transferring device for the figures in a calculating machine
295224	Maul, Michael	Record controlled machine
301289	Pott, August Friedrich	Controlling mechanism for accounting machines
305382	Beria, Biagio	Key interlock and release for cash register
308260	Rauh, Hermann	Accounting machine with a transverse balancing mechanism for positive and negative sums and accumulating mechanisms, of which every two different ones, i.e. one for positive and one for negative line totals, are coordinated to a predetermined column
308261	Rauh, Hermann	Carriage control for accounting machines
308262	Rauh, Hermann	Motor key feeding for accounting machines	US2344410
310079	Pott, August Friedrich	Calculating machine cash register or the like
310080	Pott, August Friedrich	Calculating machine cash register or the like
314407	Mercier, Jean	Machines for stamping or marking letters or for similar operations
316824	Pappe, Felix	Calculating machine
321161	Vieillard, Georges	Record card for card controlled machines
326111	Pott, August Friedrich	Control gear for clutches in adding machines	US2399890
336047	Friedrichs, Wilhelm	Stamping machine
338272	Anschutz, Robert & Kammel, Ernst Hugo	Booking machine, particularly typewriting-calculating machine, equipped with total-taking mechanism
344454	Martin, Rudolf & Meuter, Otto	Calculating machine
347464	Moller, Hans & Sobisch, Johannes & Loebe, Felix	Bookkeeping machines or the like
352972	Cordt, Hugo	Multiple counter calculating and registering machine
353408	Hoszler, Walter & Lohs, Albert	Calculating or bookkeeping machines
355383	Kiel, Karl Berthold Wilhelm	Selecting mechanism for calculating machines
361145	Beria, Biagio	Hand-operated cash register
363552	Pott, August Friedrich	Printing calculating machines, adding machines, cash registers or the like
363566	Anschutz, Robert	Totalizers
370154	Riegger, Paul	Taximeters of the type used in public conveyances
373996	Anschutz, Robert & Kammel, Ernst Hugo	Device applicable for bookkeeping-calculating and similar machines
383890	Kiel, Karl Berthold Wilhelm	Adding machine
391202	Anschutz, Robert	Booking machines, especially typewriting-calculating machines equipped with total-taking control mechanisms
393133	Kielland, Jan	Method and apparatus for counting blood corpuscles	US2369577
403580	Beria, Biagio	Cash register

Class 236 -  Automatic temperature and humidity regulation

Serial Number	Inventor	Title	Patented
251226	Gini, Aldo	Air conditioning systems
327512	Wunsch, Guido & Bulnheim, Herbert	Flue gas control devices
354449	Riedel, Ferdinand	Control device for once-through vapor generators	US2356533
421940	Kool, Wilhelmus Cornelis & Pool, Jacques & Benschop, Jacobus Petrus	Heat producing and consuming systems

Class 237 - Heating systems

Serial Number	Inventor	Title	Patented
381240	Appel, Hans	Low-pressure steam heating plant particularly adapted for railway vehicles	US2356372

Class 238 - Railways surface track

Serial Number	Inventor	Title	Patented
364319	Retterath, Valentin	Rail fastening	US2350819
401901	Cipolla, Manlio	Oblique junction-plane rail joint	US2375523

Class 240 - Illumination

Serial Number	Inventor	Title	Patented
285165	Marzetti, Manlio	Pick-ups and circuits therefor
325317	Thorner, Walther	Method and means for the illumination of paintings
335177	Chiti, Aroldo	Vehicle or light lamp	US2338901
360215	Venot, Emile	Switching-case for electric pocket lamps	US2330851
371891	Dietrich, Friedrich Richard	Vehicle lamps
374940	Nier, Bruno	Lantern head for hurricane lamps
375429	Weber, Alwin	Scale illumination
384868	Dietrich, Friedrich Richard	Reflectors for headlights consisting of an ellipsoidal vertex part and a paraboloidal border part	US2340515
384869	Dietrich, Friedrich Richard	Process of manufacturing reflectors, particularly for headlights for vehicles
397213	Geffcken, Walter	Light-source in connection with a filter
433386	Salani, Ettore	Projectors	US2341658

Class 242 - Winding and reeling

Serial Number	Inventor	Title	Patented
81737	Schiff, Karl Ludwig	Dispensing devices
212874	Reiners, Wilhelm & Kahlisch, Gustav & Furst, Stefan	Traversing means for winding machine
248046	Steiner, Otto	Cinematograph cameras	US2422635
319192	Dietrich, Paul	Joining paper reels	US2365528
319977	Schleifer, Carlo	Supporting and actuating means for a vertically reciprocating member	US2370328
326641	Esser, Wilhelm & Kahlisch, Gustav & Reiners, Walter	Cross winding frame	US2338914
337038	Dietrich, Paul	Joining paper reels	US2365529
381944	Reiners, Wilhem & Kahlisch, Gustav	Cross winding frame	US2350927
383084	Reiners, Wilhelm & Reiners, Walter & Kahlisch, Gustav & Furst, Stefan	Winding frame	US2369606
383286	Reiners, Walter & Furst, Stefan	Yarn guide	US2350928
405443	Obolensky, Dimitri	Reels or spools for motion picture films	US2373704

Class 244 - Aeronautics

Serial Number	Inventor	Title	Patented
223406	Hafner, Raoul	Helicopters	US2338935
225352	Wilmanns, Gustav & Moller, Paul	Covering for air-planes
226191	Dornier, Claude	Propelling plant for aircraft	US2348792
230120	Fischel, Eduard & Rieper, Gerhard	Automatic control for aircraft and the like	US2340524
231882	Dornier, Claude	Multimotor airplane
235640	van den Bussche, Hendrick Karel Dominicus	Boundary layer control in aerofoils
245580	Ksoll, Joseph	Aeroplane supporting plane
252298	Dornier, Claude & Staufer, Franz & Bottling, Franz & Wahner, Hubert	Air brake for aircraft	US2421870
252299	Dornier, Claude	Brake for aircraft
254867	Flettner, Anton	Helicopter having twin intermeshing rotors
264004	Richard, Paul Aime	Stabilizers for aircrafts
265721	Dornier, Claude	Aeroplane
267138	Neumann, Otto	Device for heating surfaces of aircraft exposed to freezing
272042	Focke, Henrich	Aircraft control	US2338923
273879	Cyron, Kurt & Wessel, Erich	Girders for aircraft structure	US2347542
283255	Wagner, Herbert	Driving means for air pumping devices on airplanes
283962	Dornier, Claude	Aircraft fuselage
288461	Waseige, Charles Raymond	Retractable landing gear for aircraft	US2345021
288462	Waseige, Charles Raymond	Retractable landing gear for aircraft	US2355764
288683	Amiot, Felix	Construction of fuselages	US2486378
291636	de Muyser, Alfred	Construction of airplanes
292640	Mercier, Jean	Automatic locking device for undercarriage	US2365424
297773	Gusalli, Luigi	Astronautic vehicle
306424	Oeckl, Otto & Koch, Rudolf	System of constructing aircraft elements
309655	Bechereau, Louis	Supporting surfaces for aircrafts	US2456906
312691	Kronenberger, Adam	Automatic steering device for aircraft	US2382727
318343	Tauty, Rene	Devices for airchuts	US2447824
319988	Rouanet, Roger Leger Marie Fernand & Rey, Francois Victor Andre Joseph	Control limitating devices on aircraft
323201	Dewoitine, Emile Julien Eugene	Aeroplanes and hydroplanes having folding wings
326529	Tauty, Rene	Devices for absorbing shocks especially for parachute	US2352036
326648	Moller, Waldemar & Kronenberger, Adam	Automatic steering devices	US2341644
330007	Mercier, Pierre Ernest	Landing gears with dirigible landing wheel	US2401364
335573	Arsandaux, Louis	Supporting elements for aircrafts	US2378528
337848	Villinger, Franz	Air transfer arrangements
340196	Lisi, Giuseppe	Parachute with variable surface	US2371898
340336	Scheler, Emil & Edzard, Gustav	Aircraft wing	US2355681
340799	Hettich, Alfred	Exhaust gas pipe for airplanes
342756	Mercier, Jean	Airplane landing gear	US2367467
357045	Lisi, Giuseppe	Control device for varying the speed of parachutes during the descent	US2342287
358731	Pelessoni, Giovanni	Wing for aircrafts with a variable surface even during the flight	US2350809
359941	Gliubich, Carlo	Control means for aircraft wing flaps	US2350751
365430	Kronenberger, Adam	Rudder machines for automatic pilots	US2356597
366353	Nakagawa, Toyosaburo	Aeroplane float capable of being expanded and contracted	US2345143
367329	Kronenberger, Adam	Automatic steering device for aircraft	US2401168
367666	Anxionnaz, Rene & Imbert, Rogert	Reaction propelling device for aircrafts	US2396911
373622	Neumann, Heinrich & Bukowski, Gunther & Ramshorn, Reinhard & Spiegel, Erwin & Tonn, Hans	Means for influencing the conditions of flow, particularly for power plants in aircrafts	US2396598
373714	Fonck, Rene	Fighter planes	US2358919
375866	Wasiege, Charles Raymond	Control mechanisms for lowering flaps and hyper-lifting devices for aircraft
381153	Dreyfus, Georges	Shock-absorbing devices of the frictional type
381154	Dreyfus, Georges	Parachutes	US2394295
381155	Dreyfus, Georges	Parachute belts	US2351938
383475	Koch, Rudolf	Aircraft wing	US2344044
388039	Gianoli, Marcel Louis	Automatic piloting of marine or aerial vehicles
390181	Hehs, Akos	Parachute equipment
396458	Richard, Paul Aime	Aircrafts
404695	Bolkow, Ludwig	Aircraft plane	US2365382
404951	Apostolou, Demeter A.	Device for neutralizing the inertia of a vehicle body
411409	Kertesz, Imre	Parachute equipped airplanes
412194	Meyer, Jean Gustave Antoine Marie Joseph	Feeding of motors
430821	Saulnier, Raymond	Construction of retractable landing gear	US2438650
430970	Waseige, Charles Raymond	Retractable tail landing gears for aircraft	US2387628
443964	Wasiege, Charles Raymond	Driving joint for control devices for retractable members on board aircraft	US2405623

Class 246 - Railway switches and signals

Serial Number	Inventor	Title	Patented
320937	Rabourdin, Jean	Control system and method especially for railway car classification yards

Class 248 - Supports

Serial Number	Inventor	Title	Patented
242072	Julien, Maurice Francois Alexandre	Suspension devices
288972	Julien, Maurice Francois Alexandre & Rocard, Yves Andre	Resilient suspension of vibrating bodies
304633	Julien, Maurice Francois Alexandre	Resilient supports
310722	Lubberhuizen, Jan Willem	Electro-motor driven vertical centrifugal machine	US2340542
314001	Marzetti, Manlio	Means for resilient mounting of units	US2386248
346924	Nallinger, Fritz	Fastenings of instruments

Class 249 - Automatic weighers

Serial Number	Inventor	Title	Patented
298141	Rival, Theophile	Automatic weighing device
387502	Rambold, Adolf	Filling and measuring device with balance including process	US2370191

Class 250 - Radiant energy

Serial Number	Inventor	Title	Patented
85166	Muller, Egon Nicolas	Automatic selectivity control for radio receivers	US2353180
90702	Federmann, Wolfgang	Cathode ray tube control circuits
120900	Chevallier, Pierre	Amplifier with secondary electronic emission
181087	de Kramolin, Ladislas	Selectivity apparatus
215248	Hagedorn, Gerhard	Method and apparatus for electrical resistance welding	US2344353
239153	Schlesinger, Kurt	Braun tube	US2348853
242441	Hartmann, Josef Heinrich	Fluorescent screens
254581	Messner, Maximilian	Braun tubes	US2356418
260249	Gabler, Johannes	Aerial for motor vehicles	US2351947
267210	Geiger, Max	Cathode ray beam deflection apparatus
268262	Wolff, Hanns-Heinz	Cathode ray tube	US2342778
272073	Paumier, Andre Paul	Electronic scanning devices for television	US2387608
274145	Kramar, Ernst	Radio direction finding systems
314195	Dietrich, Hans Leo	Receiver	US2369542
321239	Ruska, Ernst & Schuchmann, Hans & Ruska, Helmut & Muller, Heinz Otto	Electronic microscope	US2370373
322193	de Kramolin, Leon Ladislas	Devices for regulating radio sets and the like
322891	Bergtold, Fritz	Loop antenna with iron core	US2350211
323450	de Kramolin, Leon Ladislaus	Radio apparatus
324963	Plump, Ernst Hermann	Receiver for frequency modulated waves	US2491331
331054	Gorlich, Paul	Light sensitive layers
334552	Riedel, Wilhelm & Graefe, Kurt Heinz	Cathode ray tube
342615	Bergtold, Fritz	Radio tuning units
343131	Schone, Alfred	Device for resetting or correcting key tuning devices
348524	Weigend, Franz	Sluicing devices for corpuscular ray apparatus	US2362515
353755	Dallenbach, Walter	Hollow space radiator	US2349942
356260	von Borries, Bodo & Ruska, Ernst	Electrostatic lenses for corpuscular ray apparatus	US2359290
358511	Strubig, Heinrich	Methods and means for producing television images	US2351889
358686	Schwarzer, Kurt	Rontgen tube with anode turning about its longitudinal axis	US2350642
359573	Vantler, Max	Electron tube grid
359951	Schmellenmeier, Heinz	Electron tubes
359952	Herringer, Felix	Electron tubes
363862	Dolle, Erich & Stier, Hermann	Arrangement for the automatic tuning of a transmitter antenna
364305	Hook, Christopher	Electrical musical instruments of the keyboard type such as organs
365560	Frundt, Hans Joachim	Fault indicator device for amplifier tubes	US2345042
367194	Kohl, Karl	Device for enlarging the image of rapid occurences, particularly of the oscillogram of a Braun tube	US2350774
367424	Kohl, Karl	Transmitting arrangement for aeroplane navigation
372886	van Zwet, Willem Leendert Carolus $ Kroger, Ferdinand A.	Luminescent material
374322	Matsudaira, Hatsutaro	System for directive radiation of electromagnetic waves	US2349976
374460	Wolff, Hanns-Heinz	Cathode ray tube	US2370700
374461	Wolff, Hanns-Heinz	Electrical light impulse generator	US2449536
374712	Strutt, Maximilian Julius Otto & van der Ziel, Aldert & Bakker, Cornelis Jan	Circuit for the transmission of electrical oscillatious	US2352956
374950	Schobelt, Rudolf	Apparatus for producing an electrical magnitude to be measured or controlled
376309	von Ardenne, Manfred	Electronic microscopes	US2356633
376310	Muller, Heinz Otto	Apparatus for taking pictures of the images produced by the electron optic apparatus	US2382739
376930	Peycelon, Aristide & Malsallez, Paul	Device for dissociating the electric charges of a gas or of a gaseous mixture
377299	Scharfnagel, Rudolf	Electron tubes	US2348852
377718	von Ardenne, Manfred	Diaphragms for electron optical apparatus	US2352043
380368	Dallenbach, Walter & Allerding, Alfred & Huttmann, Erich	Device for super-position of two ultra-high-frequency electromagnetical-oscillations	US2382693
383162	Hannemann, Heinz	Carrier frequency receivers
386266	Messner, Maximilian & Schantl, Erich	Cathode ray tubes	US2378569
387645	Lopp, Edmund	Electron tubes
388936	Gerhard, Ernst	Directional antenna with suppressed lobes or ears	US2354254
389323	Herriger, Felix	Rectifiers for voltage duplicating circuits	US2348814
389409	von Borries, Bodo	Electronic microscopes	US2396624
393263	Allerding, Alfred	Electron tube device for ultra short waves	US2351895
394993	Boucke, Heinz	Receiver with nearby, or remote motor tuning and with band width control	US2327244
395021	Bischoff, Kurt	High tension apparatus	US2372928
397647	Toulon, Pierre Marie Gabriel	Orientation systems	US2369622
401038	Kallmann, Hartmut Israel & Kuhn, Ernst	Device for the production of visible of photographic images with employment of neutrons as depicting radiation	US2344042
401039	Kallmann, Hartmut Israel & Kuhn, Ernst	Method and device for depicting objects by means of neutrons or X-rays	US2344043
401099	Koschmieder, Kurt	Tranmitters for testing radio receivers	US2340539
401473	Kummerer, Wilhelm	Arrangement to disconnect transmitter tubes in case of flashovers or short-circuits	US2353677
401781	Ruska, Ernst	Electronic lens	US2356535
401813	von Ardenne, Manfred	Electronic microscopes	US2361722
402827	Irslinger, Otto	Reception of frequency modulated waves	US2349966
407735	van Overbeek, Andrianus J. W. M.	Secondary electron amplifiers	US2340631
407738	Jonker, Johan Lodewijk Hendrik	Electron discharge devices	US2340594
408830	von Borries, Bodo & Muller, Heinz Otto	Electronic microscopes	US2356551
409384	Morland, Preben & Smith, Jorgen Adolph	Apparatus for treatment of nerves and muscles by means of electric impulses	US2350797
409385	Morland, Preben & Smith, Jorgen Adolph	Apparatus for treatment of nerves and muscles by means of electric impulses	US2375575
414298	Behne, Rudolf & Buhs, Walter	Television pick-up tube	US2374914
417655	Ohl, Klemens	Cathode ray tube	US2375815
417800	Tenenbaum, Berko	System of radio communications
418750	Colberg, Rolf & Michels, Friedrich	Dynamic multiplier	US2396554
418762	Knick, Ulrich	Compensating arrangement for television tubes	US2371897
421298	Posthumus, Klaas & Penning, Frans Michel & Dorgelo, Eduard Gerardus & Verburg, Cornelis	Electron discharge devices	US2347797
421310	de Gier, Johannes	Cathode ray tube system	US2341764
422216	Strubig, Heinrich & Hass, Walter	Luminescent material
427599	Douma, Tjiske	Aerial systems	US2345735
429583	de France, Henri	Beacon systems
430602	Coeterier, Frederik	Electric discharge tubes	US2347990
436535	Gamet, Pierre Paul	Multiple strand aerials	US2369556
440415	Ganiayre, Andre	Electromagnetic wave direction indicators	US2388262
440416	Ahier, Jean	Indicating systems particularly for the measure of angles	US2380929
440417	Hardy, Rene & de Maertelaere, Pierre	Ultra high frequency wave coupling devices	US2383857
442373	Gamet, Pierre Paul	Coupling systems for loading devices such as aerials	US2375547
442374	Gamet, Pierre Paul	Aerial systems for radio beacons	US2350747
445888	Pasqualigo, Giulio	Multi-anode electron tubes and working circuits therefor	US2383886
457509	Heitz-Boyer, Maurice Georges	Surgical tables	US2456277
464750	De France, Henri	Systems for use in connection with television and the like	US2420303
628674	Hahnemann, Walter Max	Antenna structures

Class 251 - Valves

Serial Number	Inventor	Title	Patented
319423	Vervoort, Bernhard	Slide valves for liquids and vapors with bilaterally acting gates
330197	Remus, Valentin	Valves for obturating devices for fluid pipes and containers under high pressure, particularly fire extinguishers and the like	US2410105
368491	Ohno, Toranosuke	Reversible valve for a pump
375511	Hoffmann, Georg	Tire valves	US2371891
381815	Werner, Karl	High pressure closing devices	US2394345
392571	Gratzmuller, Jean Louis	Valve systems	US2342731
394323	Gosslau, Fritz & Zarnack, Werner	Regulator valve for internal combustion engines

Class 252 - Compositions

Serial Number	Inventor	Title	Patented
53933	Letters, Carl	Process for making an emulsion for mortar tempering
107398	Welter, Adolf	Manufacture of soap
251812	Schubert, Arthur & Socknick, Ernst & Kutscher, Wolfgang	Light metal fire extinguishing
265605	Zeltner, Joseph	Process for the preparation of catalysts for hydrogenation	US2326275
271343	Jaubert, Georges Francois	Production of bodies which absorb gases and vapors
302687	Moser, Franz Rudolf	Lubricating oil composition
303897	Endres, Gunther	Disinfecting agents	US2348795
306413	Watzel, Rudolf	Process for the production of nitrogen-phosphoric acid compounds	US2338987
313017	Volz, Anton	Method of washing white and coloured textile material	US2356550
323475	Croulard, Georges	Soaps
327344	Muller, Adalbert	Aqueous emulsions and process for their production
342564	Bornemann, Ferdinand & Huber, Hans	Bar soap composition	US2342786
357789	Brendlein, Heinrich	Process for producing of catalysts
359171	Lowenstein, Leo	Method of producing foam baths
361581	Giloy, Franz	Corrosion preventing agents	US2344404
365264	Hentrich, Winfrid & Gilroy, Franz	Process for producing shaped washing agents
373942	Wenzel, Wilhelm	Art of carrying out exothermic reactions
382394	Pier, Mathias & Christmann, Friedrich	Lubricants	US2421082
382663	Berg, Herbert & Heim, Hans	Process for producing catalysts	US2369524
384741	Pier, Mathias & v. Fuener, Wilhelm & Peters, Kurt	Production of catalysts
384803	Lietz, Gustav	Greasing agent	US2350782
392534	Muller, Adalbert	Process of producing acqueous emulsions, especially suitable for treating textiles, paper and leather	US2350800
395896	Hikami, Katsuyuki	Method of preventing natural combustion and overheating of sulphide ores and other mineral products
413450	Hustinx, Marie Joseph Hubert Edmond	Washing and cleansing agent which remains homogeneous and a process for the preparation of such agent
416424	Schubert, Ernst & Pierer, Heinz	Producing a washing agent and detergent	US2352021
426254	Madsen, Laurits Thorkild Schoube	Process for laundering with hard water and soap or other laundering agents, and means for performing said process
434620	Rudy, Hermann & Warnecke, Gustav	Cleaning compositions in paste-form
439937	Levenson, William	Anti-freezing composition
470674	Roger-Petit, Jean-Camille	Process for obtaining moistening, frothing, emulsifying agents and detergents from cocoa-nut oil, palmistic oil, palm oil, etc.

Class 253 - Motors, fluids

Serial Number	Inventor	Title	Patented
293043	Gente, Ernst	Steam turbines and more particularly to a disc therefor provided at both side with blades	US2338926
353551	Schutte, Alfred	Gas turbine
365892	Melninghaus, Ulrich	Bladed disc for radial flow rotary machines	US2344099
373008	Melninghaus, Ulrich	Blade carrying rotors for axial flow rotary machines	US2356605
373058	Gente, Ernst	Steam turbines	US2382705
373481	Glaser, Alex Frederik George	Turbine for steam, water and air	US2404371
379610	Melninghaus, Ulrich	Balancing the thrust of bladed discs in radial flow rotary machines	US2344100
385115	Melninghaus, Ulrich	Elastic support of discs for radial flow rotary machines	US2344101
385333	Schutte, Alfred	Blade fastening for gas turbines
385334	Schutte, Alfred	Bladed gas turbine rotor made of ceramic materials
412906	Gente, Ernst	Sealing arrangement for centrifugal machines	US2382706
415306	Dupont, Emile	Turbine	US2374671

Class 254 - Pushing and pulling implements

Serial Number	Inventor	Title	Patented
299877	Laraque, Roland	Winch provided with an automatic release at the end of the lifting operation	US2347569
304820	Sturm, Erwin	Rope drum with regulable hydraulic drive especially for lifts	US2344115
335638	Lohs, Willy	Locking mechanism for toothed racks, particularly for adjustable struts adapted for use on airplanes	US2476154
373239.5	Schmitt, Carl	Lifting jack for motor vehicles	US2356623

Class 255 - Earth boring

Serial Number	Inventor	Title	Patented
271524	Schlumberger, Marcel	Coring tool
384737	Meutsch, Adolf	Percussion drill for drilling hard rock
399916	Shinomiya, Shigeru	Device for sinking a deep oil-well and simultaneously elevating sands and earths
399917	Shinomiya, Shigeru	Drilling device capable of acting transversely in a deep oil-well	US2410753
474327	Allard, Pierre Jean-Marie Theodore	Grabs used for boring

Class 256 - Fences

Serial Number	Inventor	Title	Patented
317139	Tholstrup, Poul	Snow screens	US2389395
398440	Pekar, Jan	Protective railings

Class 257 - Heat exchange

Serial Number	Inventor	Title	Patented
268009	Jendrassik, George	Apparatus for gas turbines
300820	Beck, Stefan	Heat exchange devices
304666	Helmbold, Theodor	Cylinder fin construction for air-cooled engines
344769	Engels, Bernhard	Refrigerator
353344	Beck, Stefan	Heat exchange device of the lamellate type
377799.5	Starke, Emil Walter	Radiator
378096	Modugno, Francesco	Automatic control of the circulating pump of condensers normally working with natural water circulation for propelling apparatus	US2415106
389131	Hintze, Rudolf	Heat exchangers
402669	Nanz, Ernst	Heat exchanger

Class 259 - Agitating

Serial Number	Inventor	Title	Patented
35394	Eirich, Joseph - by his heirs at law	Method of mixing or granulating of pulverulent and plastic materials of all kinds
317206	Eirich, Joseph - by his heirs at law	Method of mixing or granulating of pulverulent and plastic materials of all kinds	US2357941
343887	Eirich, Joseph	Mixing machine
368050	Vollrath, Paul	Apparatus for mixing, sifting and kneading	US2345163
369376	Fritz, Willi	Process of and apparatus for making butter and cream
392580	Mercier, Jean	Fluid mixing apparatus

Class 260 - Chemistry, carbon compounds

Serial Number	Inventor	Title	Patented
73578	Dunay, Sandor	Featherdown felt and methods of manufacturing the same
83244	Reibnitz, Bruno V.	Production of sulphonation products of mixtures of alcohols or olefines
108196	Lieseberg, Friedrich & Wietzel, Gustav	Production of acetaldehyde
114710	Eidebenz, Emil	Medicaments and process for the manufacture thereof
126525	David, Karoly Gyula	Biologically active substances
129813	Reibnitz, Bruno V.	Production of sulphonation products
132770	Hentrich, Winfrid & Lainau, Carl Albert & Kaiser, Wilhelm Jakob	Production of fatty alcohol sulfonates
134186	Legerlotz, Helmut	Method of converting hexylresorcinol into an easily water soluble form
144097	Oppenauer, Rupert	Process for oxidizing unstaturated polycyclic alcohols	US2384335
188958	Foldi, Zoltan	Process for the production of new efficacious p-amino-benzen-sulphamide derivatives, suitable for injection purposes	US2338106
192964	Haussmann, Hans	Production of wetting agents
196546	Bretschneider, Hermann	Process of preparation of sterol oxidation products containing two carbonyl groups
202011	Mertens, Willi	Method for hardening of polymers	US2418978
202126	Laqueur, Ernst & David, Karoly Gyula & Dingemanse, Elizabeth & Freud, Janos	Production of male sexual hormone
203674	Berg, Herbert	Synthetic resins	US2356562
205989	Schirm, Erik	Method for the production of higher molecular mercaptals and mercaptols	US2369612
211388	Menger, Rudolf	Anti-friction device
216105	Guinot, Henri Martin	Process of separating olefines from gaseous mixtures
216606	Muller, Hans & Wassmansdorff, Hans	Polyisbobutylene mixture for electric insulating purposes
219604	Maximoff, Alessandro	Synthetic rubber	US2404392
220011	Maximoff, Alessandro	Synthetic rubber
221264	Bauer, Walter	Process for converting trichlor ethylene
222535	Salomon, Arnold	Coccocidal compounds
227107	Suzuki, Hiroshi	Method of preventing scale formation
232013	Hinrichs, Wilhem J. H.	Process for producing an agent adapted for rendering materials impermeable
235224	Carroll, Henri	Plastic composition and process for manufacturing the same
237057	Greth, Arthur	Process for the preparation of hardened synthetic resinous products
237278	Behnisch, Robert & Pohls, Paul	Condensation products
238166	Greth, Arthur & Reese, Johannes	Resin-like rubber conversion products
239456	Rinke, Heinrich & Schild, Heinz & Siefken, Werner	High molecular polymerization products	US2511544
242290	Schuller, Aladar & Tritsmans, Remi-Gustaaf	Process for stabilizing cellulose esters
242894	Hueter, Richard	Process for preparing ketenes	US2383863
245916	Michel, Richard & Buschmann, Hans	Sulphonation products and a process for the manufacture of the same
246492	Alder, Kurt & Rickert, Hans-Ferdinand	Condensation products	US2336208
249340	Jablonski (nee Hofmann), Elsa Maria & Fischer, Max	Wetting, dispersing and washing agent
250066	Bauer, Walter	Method for producing unsaturatued chlorinated hydrocarbons containing four carbon atoms
251044	Starck, Werner & Freudenberger, Heinrich	Aqueous emulsions and a process of preparing them	US2422646
251396	Tchitchibabine, Alexis	Process for the preparation of polyamines and their derivatives, and products obtained therefrom
251702	Mugdan, Martin & Sixt, Johann	Process for producing styrene
253223	Aasen, Asbjorn	Thermoplastic material and a process for the manufacture of same
253715	Koeppel, Claus	Method and apparatus for producing urea
254730	Akahori, Shosaburo	Process for the manufacture and production of deterging, emulsifying, wetting and dispersing agents
255603	Rastelli, Arrigo	Process for the disassociation of fats
255882	Haffner, Felix & Sommer, Fritz	Stimulants suitable for combating symptoms of fatigue and process for their production	US2356582
257543	Bredereck, Hellmut	Manufacture of nucleosides
261159	Schiedewitz, Hans Herbert	Process for preparing water-soluble condensation products
262728	Guenther, Fritz & Haussmann, Hans	Production of substituted aromatic sulphonic acids
263258	Durr, Andre Henri Victor & Issler, Alfred Andre	Process for the manufacture of plastic materials and new industrial products resulting therefrom
266701	Braun, Isaac	Method of obtaining cream of tartar
267160	Bauer, Walter & Gotz, Franz	Higher molecular substances from allyl chloride and its homologues	US2338893
268024	Roelen, Otto	Production of oxygenated carbon compounds	US2327066
268405	Kreidl, Ignaz & Nozicka, Franz	Procss for the production of diamide and polyamide resins
271501	Oesterreich, Carl Ernst Willy	Procss for the production of a binding agent for fibrous substances
272852	Walter, Hans & Schulz, Hermann	Process for the production of condensation products
274109	Dreher, Emil	Process for the manufacture of resites	US2351937
275323	Otto, Michael	Production of polymerization products from isobutylene	US2344213
275513	Weimann, Max	Manufacture of extracting aliphatic acids, especially acetic acid
279151	Kummel, Paul	Solvent for polymerised synthetic substances	US2338948
281690	Nitescu, Marcel	Catalytic process for converting liquid and gaseous hydrocarbons into anti-knock spirit and aromatic hydrocarbons	US2375940
283323	Chwala, August	Gluosidic compounds	US2356565
283374	Fehr, Karl & Schneider, Wilhelm	Process for obtaining crystalline materials from oils
284711	Haack, Erich	Condensation products
286693	Schwappacher, Heinrich	Method for the manufacture of writing-masses
287249	Schmidt, Walter	Dichlorobutenes and a process of preparing them
287408	Alder, Kurt & Windemuth, Erwin	Condensation products	US2352606
287760	Schrader, Gerhard	Hexaesters of tetraphosphoric acid	US2336302
289711	Natta, Guilio	Process for the manufacture of butadiene
290077	Visser, Gerardus Hendricus	Production of olefine oxides
291380	Kolling, Helmut & Rottig, Walter & Tramm, Heinrich	Process for aromatizing and dehydrogenating hydrocarbons
292158	Bakonyi, Stefan	Moulding powders	US2454730
293507	Nagel, Kurt	Process of producing artificial resins
294323	Schneider, August	Process for the preparation of polishing wax
295616	Natta, Guilio & Rigamonti, Rolando	Process for the production of glycerol
297668	Haack, Erich	Condensation products from substances of the type of dihydroxy-diphenylmethane and process of making them	US2340528
300234	Durr, Andre Henri Victor & Wendling, Rene	Process for the manufacture of colours for printing, products resulting therefrom and their industrial applications
300984	Nagel, Kurt & Koenig	Manufacture of pentaerythritol
301165	Putzer-Reybegg, Alfons v.	Synthetic resinous products and process of producing the same
303534	Ufer, Hanns & Schoenherr, Hans & Weickmann, August	Condensation products of super-polyamide character and process of producing them
304859	Petitcolas, Pierre	Intermediary products, dyes derived from the same and their manufacturing processes
305042	Pagnon, Louis Emile Henri	Process of manufacture of cellular rubber having fluiding-tight cells
305548	Hentrich, Winfrid & Kirstahler, Alfred	Method for the manufacture of condensation-products
305564	Kopp, Georges & Meybeck, Jean Henri	Novel chromiferous dyestuffs and processes for making the same
306197	Pagnon, Louis Emile Henri	Process for the manufacture of cellular rubber having fluid-tight cells	US2332870
306583	Kruyff, Piet Cornelis	Method for preparing condensation products of the type of the furylmethane derivatives
306683	Okita, Tadao	Rubber-like materials from di-hydroxyalkyl sulphides	US2378576
306684	Okita, Tadao	Method of manufacturing rubber-like materials	US2332869
307706	Nozicka, Franz	Method for the production of press masses	US2335440
307933	Moser, Franz Rudolf	Heteropolymeric peroxides from aliphatic ketones
308726	Bretschneider, Hermann	a-dialkyl-beta-diaryl-ethanes and process for preparing them	US2350718
308888	Vallernaud, Jean Paul Amedee	Process for obtaining deterging, wetting, foaming, metallic salt dispersing and emulsifying agents and the agents obtained by this process	US2350000
309240	Jage, Fritz	Film-forming composition and process for preparing the same
309303	Schmidt, Willi & Seydel, Karl & Kroeper, Hugo	Production of alicyclic alcohols
309376	Friederich, Alfred & Schlack, Paul	Method and apparatus for producing linear polymers
309702	Scheuing, Georg & Walach, Bruno	Analgetically effective tetrahydronaphthalene derivatives	US2369611
314449	Zerweck, Werner & Schubert, Max	Resinous condensation products	US2339314
314568	Rieche, Alfred & Caro, Gottfried	Manufacture of cation-exchangers
315037	Kroeper, Hugo & Haussmann, Hans	Condensation products and a process of producing same	US2324936
315627	Jorgensen, Holger	Extraction of gelatine from ossein
315716	Curletti, Italo & Martini, Pio	Process for the disassociation of fats
318386	Freudenberg, Karl & Lautsch, Willy & Brenek, Hans	Process of making vanillin from lignin, lignin derivatives or other materials containing lignin
318663	Bitterli, Emile V. & Forrer, Max	Molded material
321135	Herrmann, Willy O. & Haehnel, Wolfram	Products
322481	Christiansen, Aage	Process for the purification of phospatides	US2356382
322552	Hentrich, Winfred & Engelbrecht, Heinz-Joachim	Condensation products of the anthraquinone series	US2335412
323410	van Peski, Andrianus Johannes	Process for treating naphthenic hydrocarbon distillates
323512	Hagedorn, Max	Process for the production of high polymeric compounds
324384	Stadler, Robert & Auerhahn, Albert	Production of vinyl acetylene	US2323631
326300	d'Angremond, Arend & Schrieke, Otto Bertram	Process for concentrating aqueous dispersions	US2332902
326497	Groen, Marthinus Gerardus	Method of producing starch esters	US2412213
326804	Zeltner, Joseph & Genas, Michailas	Process for manufacturing carbinols having an acetylenic function	US2345170
326967	Kern, Rudolf	High-molecular film-forming condensation products and process of producing same	US2356764
326973	Sartorelli, Umberto	Methods of regenerating vulcanized rubber
327494	Staudinger, Hermann & Kummel, Paul	Production of painting colors
327519	van Gils, Gerald Eduard	Process for the production of latex with low protein content
327632	Hagedorn, Max & Schmitz-Hillebrecht, Ernst	Process for the production of high polymeric condensation products	US2341611
327634	Gumlich, Walter & Ecker, Ruprecht	Regenerating of vulcanized rubber	US2338427
327820	Reppe, Walter & Wchmidt, Willi & Spanig, Hermann & Steinhofer, Adolf	Process for the production of alcohols of the acetylene series
327848	Krause, Georg A.	Process of rendering casein soluble
328152	Kopp, Georges & Gangneux, Rene Eugene Marcel	Dyestuffs derived from the 2-amino-3-naphtoic acid, their method of of manufacture and their applications
329826	Tramm, Heinrich	Process of carrying out endothermic transformations of hydrocarbons
329860	Schmitz, Hilger Peter & Unterguggenberger, Hermann	Chemical compositions	US2332939
330310	Ludwig, Richard & Meis, Helmut	Precipitation of emulsion polymerizates
330467	Wiest, Georg	Process for the conversion of ketoximes into acid amides
330476	Schmidt, Willi & Seydel, Karl	Production of cyclic oxygen compounds	US2387617
332700	Muller, Hans & von Gizycki, Ingeborg	Method of producing artificial substances from polyvinyl compounds
332701	Muller, Hans & von Gizycki, Ingeborg	Method of producing artificial substances from polyvinyl compounds
333012	Oppenauer, Rupert	Manufacture of hydroxy-keto compounds having a cyclopentanopolyhydrophenanthrene nucleus	US2363548
334574	Konrad, Erich	Synthetic rubber-like materials
334582	Trieschmann, Hans-Georg & Manchen, Friedrich	Production of aliphatic dichloro compounds
334990	Foldi, Zoltan & Konig, Rezso & Demjen, Istvan	Process for preparing aminothiazol-derivatives
335356	Chomette, Andre & Thiollet, Robert	Method of manufacturing products from rubber and products obtained through said method	US2356564
335387	Mercier, Jean	Manufacture of carpets, linings or the like	US2356527
336001	Schlack, Paul	Manufacture of cyctic amidines and artificial materials produced thereof	US2356622
336004	Wimmer, Josef	Process for the production of hydrocarbon-chlorides with 4 carbon atoms from trichlorethylene
336013	Machemer, Hans	Process for condensation of primary aliphatic aldehydes	US2345138
337552	Berg, Herbert	Polymerization process
337561	Habraschka, Bernhard	Process of producing non-yellowing phenol-formaldehyde condesates	US2338430
338380	Schmidt, Otto	Production of butadiene	US2326258
338782	Kienzle, Jean Andre P.	Condensation products of area and amines	US2352552
340225	Natta, Guilio	Process for the manufacture of keto-alcohols	US2378573
340228	Natta, Guilio	Process for the manufacture of butadiene from butane or butane containing gases
340838	Pohl, Franz Josef & Schmidt, Walter	Process of preparing acetoacetic esters	US2351366
341307	Schlack, Paul	Process for the production of polycondensation products containing nitrogen	US2325552
342190	Foldi, Zoltan & Gerecs, Arpad & Demjen, Istvan & Konig, Rezso	Process for preparation of sulphonamide derivatives	US2332906
343175	Davitcho, Samuel I.	Thermophores
344782	Fink, Henrich & Hofstadt, Richard	Process for the manufacture of solutions of cellulose in sulfuric acid	US2345333
345235	Schmidt, Hans Werner	Process of manufacturing tetrachlorethylene
346154	Takayanagi, Takeo	Method of manufacturing azo compound of cinchona alkaloid
346568	Zima, Otto & Jung, Fritz	Compounds having vitamin B6 activity
346569	Zima, Otto & Jung, Fritz	Process for the manufacture of derivatives of pyridine
348079	Freudenberg, Karl	Process for the preparation of products from lignin by hydrogenation
348557	Mauri, Giovanni	Process for the extraction of resin from tomato skins
348683	Schlack, Paul	Process for the production of synthetic linear condensation polyamides	US2356702
348992	Ferretti, Antonio	Processes for the manufacture of artificial textile fibres
349286	Habraschka, Bernhard	Production of hardenable orthocresol aldehyde condensates	US2351958
351917	Kroeper, Hugo	Production of aliphatic dichloro compounds
352072	Guggemos, Herbert	Process of producing butadiene	US2345113
352114	Schuster, Curt & Sauerbier, Rudolf & Fikentscher, Hans	Process for the manufacture of polymerization products	US2335454
352310	Hessels, Johan Hubert Egbert	Process for improving the properties of rubber latex	US2367120
352325	Kulz, Fritz	Therapeutically active tetrahydroisoquinoline compounds and processes for their production
352520	Gartner, Erich & Koch, Albert	Plastifying of synthetic rubber	US2365405
352550	Schlack, Paul	Process for the manufacture of high molecular polyamide compounds
352618	Wiechowski, Siegfried	Cosmetic for hair and skin
353384	Mueller-Cunradi, Martin & Giehne, Hellmut & Krekeler, Heinz	Preparation of crotonaldehyde	US2341229
353425	Hunsdiecker, Heinz	Process of manufacturing cyclopentenoe derivatives	US2387587
353982	Halbig, Paul & Matthias, Friedrich & Triebs, Alfred	Process for the polymerization of alkoxy-butadienes	US2344085
354330	Ohta, Masaki	Process for preparing a derivative of hesperidin	US2350804
355402	Moldenhauer, Otto & Bock, Helmuth	Method for the production of polycondensation products, and the resultant products produced therefrom	US2383880
355403	Thinius, Kurt	Solutions of polyamides
355454	Hagedorn, Max	Process for the manufacture of hydrophilic polymerization products of the superpolyamide type	US2356516
355455	Hagedorn, Max	Process for the manufacture of hydrophilic polymerization products of the super-polyamide type	US2357187
355808	Asinger, Friedrich & Graf, Roderich & Herold, Paul & Platz, Carl & Schmidt, Walter	Separation process
356856	Amann, August & Greth, Arthur	Conversion products of rubber
356857	Amann, August & Greth, Arthur	Process of purifying conversion products of rubber
357498	Freudenberg, Karl	Process for the preparation of products rom lignin by hydrogenation	US2390063
357662	Wildschut, Adriaan J.	Process for the vulcanisation of rubber, balata, gutta-percha, synthetic rubber and the like, mixtures thereof and latices of these materials
358424	Trieschmann, Hans-Georg & Jutz, Erich & Reicheneder, Franz	Preparation of aldehydes	US2333216
358666	Hanschke, Ernst	Process for manufacturing after-chlorinated polyvinyl chloride
358695	Schlack, Paul	Nitrogenous condensation products	US2343808
359811	Schlack, Paul	Materials from high molecular polyamides	US2342823
359978	Waterman, Hein Israel & Van Vlodrop, Cornelus	Process for the activation of normally liquid fatty materials containing unsaturated compounds
360386	Grandel, Felix	Process for the preparation of fats and oils which are suitable for injection
360788	Hentrich, Winfrid & Kaiser, Wilhelm	Process for the manufacture of halogenated 1-hydroxy-5,6,7,8,-tetrahydronaphthalenes	US2410497
361009	Schaeffer, Erich	Process for producing vinyl chloride	US2338459
361195	Zerbe, Carl	Process of heat-treating polymerization products	US2350007
361581	Giloy, Franz	Corrosion preventing agents	US2344404
361582	Meisenburg, Kurt & Dennstedt, Ingofroh & Zaucker, Ewald	Polymerization of butadienes	US2321693
361592	Grundmann, Cristoph	Process for producing condensation products	US2352020
361888	Scheuing, Georg & Walach, Bruno	Process for the production of analgentically active tetrahydronaphthols
362608	Bachle, Otto & Sinn, Gustav	Coagulation of emulsions of organic film-forming materials
362863	Imhausen, Arthur	Production of fat and oil adapted for human consumption
362864	Imhausen, Arthur	Preparation of fats and oils adapted for human consumption
363155	Juettner, Bernard	Process for directly obtaining benzene hydrocarbons from coal
363569	Kalb, Eduard	Method of increasing and viscosity of polymers
364334	Hubert, Emil & Ludewig, Hermann	Interpolyamides
365645	Bergk, Hans	Polymeric products and the method for producing the same	US2371869
365649	Koch, Ernst	Tanning agents and process of preparing them	US2335947
366549	Schorsch, Gerhard	Process for obtaining transparent molded bodies
367231	Kern, Rudolf	Process for the production of higher molecular aldehydes and alcohols
367265	Wolff, Werner	Process for the manufacture of artificial resins
367292	Berg, Herbert & Hierneis, Julius & Machemer, Hans	Method of working up high molecular polyvinyl chloride
367300	Grandel, Felix	Process for the preparation of anhydrous compounds of the pentitoles
368611	Sandig, Kurt	Process for the production of oily resin-like condensation products
368858	Laucht, Friedrich	Production of alicyclic ketones from alicyclic alcohols	US2338445
369118	Haack, Erich	Making N-sulfonylureas	US2385571
369507	Roelen, Otto	Process for preparing means for washing, wetting and emulsifying
369909	Asahina, Haruyo	Process for manufacturing litmus dyestuff	US2344074
370142	Schlack, Paul	Production of linear polyamides
371412	Dohrn, Max & Laubereau, Otto	P-amino phynel-p-amino pyridyl sulfone and a process of making the same	US2456258
371463	Zerbe, Carl & Jaenicke, Johannes & Schweitzer, Otto	Production of synthetic rubber
371464	Zerbe, Carl & Jaenicke, Johannes & Schweitzer, Otto	Process of improving synthetic rubber and facilitating the working thereof
372566	Ulrich, Heinrich & Ploetz, Ernst & Nold, Eberhard	Fibrous materials	US2348039
372991	Fitzky, Wilhelm	Resinous condensation products
373053	Honel, Herbert	Resinous condensation products and process of making them	US2350894
373690	Guinot, Henri Martin	Hydration of olefines
373691	Guinot, Henri Martin	Hydration of olefines
373703	Martin, Friedrich	Process for the preparation of fatty acids from products of the carbon oxide hydrogenation
374298	Herrmann, Willy O. & Haehnel, Wolfram	Method of influencing the polymerization and the properties of the obtained products
374605	Martin, Friedrich & Roelen, Otto	Process for the preparation of valuable waxes, resins, artificial substances, solvents and softeners.
374864	Wiest, Georg & Glaser, Heinrich	Pimelic acid derivatives disubstituted in the v-position and a process of preparing same	US2396626
375015	Szlatinay, Ladislas	Process for making adol
375016	Szlatinay, Ladislas	Process for making adol
375656	Behrens, Johann	Process for the partial oxidation of organic compounds
376225	Weimann, Max	Extracting aliphatic acids
376926	Wagner, Hans	Process for the conversion of aldehydes containing a vinyl group into the corresponding alchohols
377406	Landgraf, Alfred & Roelen, Otto	Process for the preparation of pure oxygen containing derivatives of aliphatic hydrocarbons	US2415102
377513	Friedrichsen, Wilhelm	Method of producing diolefines	US2361539
377664	Wiest, Georg & Glaser, Heinrich	Ketones substituted by modified propionic acid radicles and a process of producing same	US2403570
377711	Korten, Ernst	Softening agent	US2410294
377842	Wagner, Hermann & Dorfelt, Christoph	Condensation products and a process of preparing them
378140	Hessen, Richard	Process for the production of moulding-mixtures	US2333786
378411	Bock, Eugen	Adhesives and coating materials	US2348447
378566	Kurtz, Peter & Schwarz, Herbert	Process for the manufacture of acrylic acid nitrile derivatives	US2322696
378567	Kurtz, Peter & Casper, Johannes & Schwarz, Herbert	Process for separation of acrylic acid nitrile	US2324854
378770	Drossbach, Otto & Hopff, Heinrich & Huttner, Karl	Method of producing lactams
378942	van der Bie, Godfried Johann	Process for the removal of noxious metal compounds from rubber or substances similar to rubber, and from dispersions thereof
379466	Bovini, Filippo	Process for preparing sulphur dyes soluble in water
379644	Hentrich, Winfrid & Schirm, Erik	Process for producing condensation products	US2401155
380562	Lolkema, Jan	Method of producing ethers and esters of carbohydrates	US2459108
381764	Claudin, Jean	Process for manufacture of senevols	US2338902
382445	Baumheier, Erich	Submarine paint	US2344018
382639	Hagemann, August	Process for the preparation of high grade anti-knock motor fuels	US2403524
382664	Beer, Ludwig & Berg, Herbert & Gruber, Wolfgang	Cooling and heating liquids	US2387557
382665	Gruber, Wolfgang & Machemer, Hans	Softening agents for high polymeric substances	US2332849
382947	Bergk, Hans	Artificial materials and the methods of producing the same
383037	Moldenhauer, Otto & Bock, Helmuth	Polycondensation or polymerization products and method for producing the same	US2378571
383038	Moldenhauer, Otto & Bock, Helmuth	Polymerization or polycondensation products and method for producing the same	US2349979
383040	Moldenhauer, Otto & Bock, Helmuth	Polymerization or polycondensation products and method for producing the same
383056	Bidaud, Auguste Florentin	Process for isolating pentaerythrite from its solutions
383057	Hendgen, Franz	Polymerization of bitumen
383225	Thinius, Kurt	Polyamides	US2338469
383226	Moller, Paul & Nicolai, Hans-Joachim	Polyamides	US2367469
383242	Blass, Karl & Bruecke, Otto	Process for separating unsaponifiable compounds from oxidation products of higher molecular hydrocarbons
385008	Honel, Herbert	Resinous condensation products and process of making them	US2343296
385019	Guinot, Henri Martin	Manufacture of aliphatic acids
385136	Hopff, Heinrich	Aryl-substituted hydrogenated cyclic compounds and the process of producing same	US2326222
385298	Hentrich, Winfrid & Schirm, Erik & Engelbrecht, Heinz-Joachim	Process for preparing capillary active substances	US2374934
385299	Hentrich, Winfrid & Schirm, Erik & Engelbrecht, Heinz-Joachim	Process for preparing capillary active substances	US2341614
385690	Vargha, Laszlo & Kramli, Andreas	Process for the decomposition of cholestenone and of halogen derivatives thereof
385697	Bestian, Herbert	N.N-(alpha-beta-alkylene)-acetamides and a process of preparing them	US2339046
386742	Bretagne, Robert Henri Leon	Process for the preparation of dyestuffs of the anthracenic series
386860	Daur, Theodor & Daniel, Theodor	Adhesives and a process of producing same	US2407143
387060	Bestian, Herbert	Process of sticking or cementing and sticking or cementing agents	US2360192
387070	Schlichting, Otto & Klager, Karl	Esters of alcohols of the acetylene series
387106	Stitz, Fritz	Process for the preparation of six membered N-heterocyclic compounds from acrolein or its homologues and ammonia
387452	Seidel, J. & Weber, Helmut	Production of synthetic tanning material	US2387619
387978	Foldi, Zoltan & Gereces, Arpad & Demjen, Istvan & Konig, Rezso	Sulphonamide derivatives
387979	Foldi, Zoltan & Gereces, Arpad & Demjen, Istvan & Konig, Rezso	Sulphonamide derivatives
387980	Foldi, Zoltan & Gereces, Arpad & Demjen, Istvan & Konig, Rezso	Sulphonamide derivatives	US2444926
388644	Fluchaire, Maurice Louis Auguste	Method of producing solutions of chlorides of polyvinyl	US2408769
389002	Hopff, Heinrich & Ufer, Hanns & Conrad, Max	Production of superpolyamides
389039	Stoewner, Fritz (by administratrix, Stoewener, Hedwig Elisabeth) & Keunecke, Emil & Becke, Friedrich	Catalytic reactions with carbonaceous materials
389340	Wolfram, Arthur & Jahn, Hellmuth	Process of forming esters	US2339126
389417	Fikentscher, Hans	Heat-stabilized high-polymer halogen-containing products	US2365400
389428	Orthner, Ludwig & Jacobs, Theodor	Process of preparing N-monochlorination products of high-molecular fatty acid amides	US2365431
390038	Laucht, Friedrich	Process for the production of oxines
390124	Konig, Rezso & Gerecs, Arpad & Foldi, Zoltan	Process for the preparation of vitamin B1 and of similarly built compounds
390742	Konig, Rezso & Gerecs, Arpad & Foldi, Zoltan	Process for the preparation of vitamins of the type B1
391311	Speer, Walter	Production of aliphatic dicarboxylic acids
391512	Fikentscher, Hans & Roehm, Richard	Heat-stabilized high-polymer halogen-containing products	US2387571
392585	Kuhn, Alfred	Method of stabilizing active substances of plants
392734	Weisz, Rezso	Method of producing antirachitically active preparation and resulting products
392812	Kroeper, Hugo & Kohler, Fritz & Wolf, Karl	Superpolyamides and process of producing same	US2338443
393282	Hopff, Heinrich & Muenster, Wilhelm & Stadler, Josef	Process for the production of oxalkylation products
394287	Mees, Willem	Intermediates for dyestuffs
394288	De Smet, Polydoor & Mees, Willem	Intermediates for dyestuffs	US2356569
394839	Mueller, Karl	Complex chromium compounds of azo dyestuffs
394840	Hopff, Heinrich & Rapp, Wilhelm	Process for the production of B.B-dicyano diethyl ether	US2448979
394870	Scherer, Otto & Dostal, Franz & Dachlauer, Karl	Process for preparing monochloromonobromomethane	US2347000
394890	Voss, Arthur (by administratrix, Voss, Hedwig) & Dietz, Karl & Thomas, Heinz	Compositions of matter	US2390198
395000	Alder, Kurt & Rickert, Hans-Ferdinand	Condensation products	US2351311
395732	Kern, Rudolf	Condensation products and process of producing same	US2390153
396964	Hentrich, Winfrid & Engelbrecht, Heinz-Joachim & Schirm, Erik	Capillary active agents	US2394307
397388	Foldi, Zoltan & Konig, Rezso	Process for the preparation of vitamin B1
397741	Schlack, Paul	Polyesters
397745	Schmidt, Walter	Methacrylic acid chloride
398105	Hentrich, Winfrid & Endres, Rudolf	Dissolving, softening, gelatinizing and swelling agents and plastical materials made therefrom	US2356586
398106	Hentrich, Winfrid & Engelbrecht, Heinz-Joachim & Schirm, Erik	Capillary active agents	US2383859
398640	Hentrich, Winfrid & Gundel, Wolfgang	Process for producing condensation products	US2378551
398772	Schirm, Erik	Condensation products and process for making them	US2365599
400571	Emich, Franz	Process for the production of products obtained from superpolyamides
400715	Petersen, Siegfried & Taube, Karl	Preparation of high molecular cellulose derivatives	US2355326
401657	Vogel, Reinard Ernst	Hardening colophony
403576	Bestian, Herbert	Condensation products and process of preparing them
403866	Hoyer, Hans & Colombara, Hans & Bienert, Berthold	Preparation of phthalocyanines
404150	Wulff, Otto & Hopff, Heinrich & Wiest, Georg	Aliphatic nitro-compounds
404233	Starck, Werner	Stable dispersions
404237	Starck, Werner & Spiecker, Wilhelm	Dry polymerization products
404238	Hopff, Heinrich & Rapp, Wilhelm	Process for the production of carboxylic acids of the pyridine series
404510	Spielberger, Georg & Hebermehl, Reinhardt	Composition of matter comprising cellulose esters
404514	Manchen, Friedrich & Schmidt, Willi	Polyvinyl chloride compositions
404519	Schussler, Heribert	Process for moth-proofing
404522	Wolfram, Arthur & Jahn, Hellmuth	Aromatic ethers of 1.3-butadiene-ol-2
404618	Hoffman, Ullrich & Meis, Helmut	Polymerization products	US2404711
404666	Popp, Bernhard & Ostrowski, Walter Johannes (by administratrix, Ostrowski, Else Marie Emma)	Process of preparing ketene
405832	Dziengel, Kurt	Corrosion preventing products and process of manufacturing the same
405992	Rinke, Heinrich & Taube, Karl	Preparation of organic diisocyanates
406557	Van Der Bie, Godfried Johan	Method of concentration latex	US2371560
407230	van der Bie, Godfried Johan	Manufacture of purified rubber	US2356549
407672	Landa, Stanislav	Process for the production of chloro-2-butadine, 1,3 (chloropren)
412892	Muller, Hans & Zeplichal, Franz	Method of producing mixtures of polystyrene with natural or synthetic rubber
414926	Feisst, Walter & Roelen, Otto & Schuff, Walter	Synthesis of multi-link hydrocarbons from hydrogen and carbon monoxide	US2369956
414927	Rosicky, Johann	Solid addition compounds	US2352012
414982	Bottcher, Bruno	Producing sulfurous organic compounds
415424	Hopff, Heinrich & Rautenstrauch, Curt W.	Production of addition products from dienes and compounds having an unsaturated carbon linkage ctivated by substituents
415519.5	Kulz, Fritz	Derivatives of 1-oxyphenyl-3-aminobutane and processes for their production	US2407167
416053	Schussler, Heribert	Water-soluble moth-proofing agents
416912	Rath, Kurt & Muller, Otto & Dietzel, Otto Ewald	Clorination of hydrocarbons
417808	Starck, Werner & Billig, Kurt	Interpolymerization products
418067	Durr, Andre Henri Victor	Printing colors and a method for manufacturing the same
419570	Riester, Oskar	Cyanine dyestuffs	US2338782
419811	Kulz, Fritz	Method of preparation of oxyphenol-amino-propane and its derivatives	US2396580
427064	Hentrich, Winfrid & Kaiser, Wilhelm & Reuss, Werner (by administrator, Winkler, Carl-Heinz)	Quaternary ammonium compounds and methods of producing same	US2356587
428996	Mathes, Wilhelm Nikolaus & Seelmann, Ludwig	Process for the production of adipic acid
429652	Berg, Herbert & Doriat, Martin	Porous polyvinyl chloride compositions	US2371868
431264	Kumetat, Karl & Riester, Oskar	Production of nitrogenous heterocyclic compounds	US2349179
432484	Kientz, Louis Rene Joseph	Varnish with a base of formophenolic resin rendered supple and method for obtaining the same	US2408782
434622	Rudy, Hermann & Watzel, Rudolf	Process for the manufacture of condensation products from sulphite lye	US2385586
437596	Le Bras, Jean Nicolas Louis & Compagnon, Patrice Henri Marie	Process for the amelioration of rubber
437597	Compagnon, Patrice Henri Marie & Le Bras, Jean Nicolas Louis	Process for the amelioration of rubber	US2388905
440830	Hauvette, Jacques Maurice Theodore	Method of recovering rubber and resulting product
440980	Reppe, Walter & Keyssner, Ernst & Hecht, Otto	Tertiary amines of the acetylene series and a process of producing the same
440984	Pier, Mathias & Christmann, Friedrich	Condensation product and method of preparing same	US2337922
460147	Cohnhoff, Erich	Artificial resins	US2428358
758606	Franz, Ehrhart	Treatment of organic materials

Class 261 - Gas and liquid contact apparatus

Serial Number	Inventor	Title	Patented
224291	Abramson, Alexander	Carburettors for internal combustion engines
224292	Abramson, Alexander	Carburettors for internal combustion engines
236006	Schmidt, Johannes	Aircraft motor
313124	Mennesson, Marcel Louis	Carburation devices for internal combustion engines
313835	Wunsch, Guido	Controlling or regulating device for internal combustion engines
328115	Mennesson, Marcel Louis	Compressor-supercharged carburation devices for internal combustion engines
351470	Aurig, Max	Disintegratorlike devices	US2338373
360260	Giehne, Hellmut & Hohenschutz, Heinrich & Krekeler, Heinz & Schott, Gerhart & Kutke, Georg	Bell-trays
362375	Koppers, Heinrich	Removal of hydrogen sulphide from gases
369478	Stock, Hellmut	Sieve-bottoms for distilling, rectifying and washing columns
369721	Fiedler, Fritz	Carburetors for internal combustion engines
391968	Menneson, Marcel Louis	Carburetters of the fuel injection type	US2392055
393122	Rossi, Giovanni	Method and means to increase duration of the contact and/or the surface of the said contact between a vaporous or gassy fluid and a liquid particularly for the purpose of distillation, etc.
393138	Baron, Charles & Verley, Albert	Fuel humidifier for internal combustion engines
394322	Gosslau, Fritz & Schmidt, Johannes & Weiche, Georg	Regulating internal combustion engines	US2369665
397993	Piquerez, Emile	Process and apparatus for placing in suspension in air an ultra-dispersed fluid or other dry products in power form	US2374699
400874	Ghezzi, Raoul	Devices for saving gasoline and improving the carburization of explosion motors of any kind, through the simultaneous addition of oil vapours and moist air
419235	Pflock, Rudolf	Apparatus for the absorption of gases in liquids	US2356530
419507	Sborlino, Gino	Flotation-apparatus of the mechanically agitated type
441859	Bonnier, Claude Etienne	Carburettors

Class 263 - Heating

Serial Number	Inventor	Title	Patented
369686	von Manteuffel, Manfred Zoege	Fuel control devices for furnaces, more particularly for boiler furnances	US2356135
389810	Coiffu, Pierre	Process and apparatus for manufacturing burnt, molten or clinkerized materials and particularly cements	US2344391

Class 264 - Speed-responsive devices

Serial Number	Inventor	Title	Patented
372968	Rodanet, Charles Hilaire Henri	Magnetic tachometers	US2347613
431435	Kieser, Hugo	Governors

Class 265 - Force measuring

Serial Number	Inventor	Title	Patented
297006	von den Steinen, Carl	Measuring instrument for determing the orbital acceleration and the functions thereof	US2396617
318932	Bollee, Pierre & Bollee, Marcel	Means for testing hardness of materials	US2348782
376576	Bernhardt, Eugene Oscar & Bischoff, Werner	Microscope	US2355411
377395	Graf, Anton	Gravity meter	US2351955
386957	Popov, Vladimir	Weighing apparatus	US2352005
415981	Popov, Vladimir Dimitrijevic	Automatic weighing machines

Class 266 - Metallurgical apparatus

Serial Number	Inventor	Title	Patented
297370	Bartscherer, Franz	Method and apparatus for increasing the output of shaft furnaces, especially blast furnaces
363041	Lohse, Julius	Method and device for directly producing pig iron and steel from ores	US2356524
385578	Bernstorff, Hans & Allendorfer, Albert	Device for stirring melts	US2390052
402253	Lohse, Julius	Continuous metallurgical treatment of raw materials	US2375932

Class 267 - Spring devices

Serial Number	Inventor	Title	Patented
244160	Wagner, Max & Laukhuff, Walter	Axle guiding arrangement for rigid axles, supported by springs which are freely yieldable under transverse forces	US2369501
262509	Laraque, Roland	Shock absorbing means for aircraft landing gear	US2378712
285256	Vancoppenolle, Jean	Device for the suspension of vehicles	US2353603
294520	Muller, Josef	Vehicle springing	US2356606
296851	Tonnies, Eduard	Shock absorber for aircraft chassis
310799	Fiedler, Fritz	Rear axle for motor vehicles	US2338921
314406	Mercier, Jean	Deformable systems
333847	de Ram, Georges Henri Ernest	Shock absorbers	US2344082
361006	Boulogne, Baltus & Boulogne, Antonie Pieter	Means for preventing wabbling of vehicles provided with pneumatic shock absorbers	US2338897
361007	Boulogne, Baltus & Boulogne, Antonie Pieter	Pneumatic shock absorbers	US2338896
361008	Boulogne, Baltus & Boulogne, Antonie Pieter	Means for reducing the slanting to a side of pneumatically supported vehicles
368848	Wilfert, Karl & Barenyi, Bela	Springing, specially of motor cars	US2352053
368849	Wilfert, Karl & Barenyi, Bela	Springing of motor cars with swinging half axles	US2419104
381312	Wulff, Siegfried	Independent wheel suspension	US2338478
381313	Wulff, Siegfried	Wheel suspension for vehicles, especially for motor vehicles having a supporting member mounted at the frame
381314	Wulff, Siegfried	Independent wheel suspension capable of yielding about a substantially vertical axis	US2351651
392169	Waseige, Charles Raymond	Hydraulic shock absorber and landing gear embodying same	US2431716
396778	Morton, Andre Adolphe	Hydraulic damping and stabilising device	US2344050
414042	Winkelmann, Otto	Vehicles, particularly motor vehicles having oscillating axles	US2344072
414147	Wilfert, Karl & Barenyi, Bela	Connection of a wheel suspension to the frame or body of a vehicle	US2344380
415007	Wagner, Max	Wheel suspension for vehicles	US2350848

Class 268 - Closure operators

Serial Number	Inventor	Title	Patented
412526	Malczewski, Jeremi	Devices for controlling multiple shutters	US2338449

Class 271 - Sheet or web feeding or delivering

Serial Number	Inventor	Title	Patented
328859	Geyer, Walter	Film treating machines	US2338422
412872	Winkelmann, Kurt	Feeding device for telegraph receivers
420886	Boleskey, Erno	Motion picture projectors
426025	Spiess, Georg	Apparatus for removing pass-differences	US2404756
439378	Hepp, Rudolf	Apparatus for taking folded or unfolded sheets of paper from a pile thereof and conveying the same to a device for further treatment	US2425936
440037	Thomas, Paul Vincent	Pressing devices with an endless strip

Class 272 - Amusement and exercising devices

Serial Number	Inventor	Title	Patented
387749	Linthout, Hans E.	Stretching apparatus

Class 273 - Amusement devices, games

Serial Number	Inventor	Title	Patented
409279	Caro, Martin & Lambert, Gustave	Racquet stringing machine	US2389609
420292	LeJeune, Leon Sylvain Max	Tennis ball	US2453143
437188	Nogrady, Miklos	Apparatus for rifle-practice	US2352000

Class 274 - Sound recording and reproducing

Serial Number	Inventor	Title	Patented
272668	Daniel, Karl	Sound record material
293496	Marzetti, Manlio	Tone arms
339491	Mediger, Harald	Base material for grammophone records and other sound records	US2342679
374772	Compare, Alberto	Automatic record disc changing device for grammaphones
374780	Cramwinckel, Arnaud & Dippel, Cornelis Johannes	Method and device for mechanical recording	US2353547
393493	Fries, Gustav	Speaking machines	US2396563
413560	Westerkamp, Hugo	Endless sound band with a mechanically reproducible sound record and method of producing same
417027	Westerkamp, Hugo	Bridging matrix for endless sound bands and method of producing such bands	US2404761
463571	Chanal, Lucien	Feed controller for record engraver carrying carriage	US2446526
463572	Chanal, Lucien	Record carrier device for sound track registering machines
463573	Chanal, Lucien	Record engraver suspension for sound track registering machine	US2445762

Class 279 - Chucks or sockets

Serial Number	Inventor	Title	Patented
263333	Wagner, Max	Chassis especially for motor vehicles	US2344378
279774	Jansen, Paul	Knife handles
435196	Garnier, Claude Etienne	Hand pieces or holding devices for rotary tools as used by dentists	US2410439

Class 280 - Land vehicles

Serial Number	Inventor	Title	Patented
263333	Wagner, Max	Chassis especially for motor vehicles (In class 279 in Queens U. database)	US2344378
327769	Wilfert, Karl	Elastic suspensions of axle aggregates	US2357370
340606	With, Bror	Means for fastening shoes on skis
357967	Horack, Hans	Adjustable jaw for skis	US2342807
374216	Schroter, Kurt & Schroter, Hans	Wheeled underframes, especially for trailers of motor cars	US2345158
374217	Schroter, Kurt & Schroter, Hans	Cars, especially trailers, with tiltable body	US2345159
374842	Wilfert, Karl & Barenyi, Bela	Resilient connection of a wheel suspension or a suspension of an aggregate of an axle to a vehicle	US2401209
390182	Latscher-Latka, Eric	Motorcycle springing	US2376788
414146	Wilfert, Karl & Barenyi, Bela	Movable connection of a vehicle body with the chassis or an axle aggregate	US2352054
415874	Raba, Georges Henriques & Alice Henriques	Device for pedalling by two persons, specially adaptable to bicycles	US2361708
465641	Sarthou, Henri	Hinged ski	US2390181

Class 281 - Books, strips, and leaves

Serial Number	Inventor	Title	Patented
262847	Grossfeld, Abraham Jakob	Pad, note-book or calendar

Class 282 - Manifolding

Serial Number	Inventor	Title	Patented
370548	Pigni, Mario	Device for holding slips or the like, for accounting or statistic registrations or similar records and the respective apparatus for cutting the slips
406566	van den Akker, Michael Antonius Hendrikus	Method of producing a control sheet, etc.	US2377466

Class 285 - Pipe joints or couplings

Serial Number	Inventor	Title	Patented
268505	Keulers, Jakob	Hollow rod connection
293149	Boissou, Pierre	Pipe joint packing means
321769	Peglau, Paul	Jet-pipe relay	US2350808
329945	Keulers, Jakob	Connection for boring tubes
334676	Nanz, Ernst	Trickle coolers
381739	Tolke, Friedrich	Resilient tubular bodies	US2352038
386686	Kreidel, Hans	Tube couplings	US2341629
403856	Laffly, Edmond Gabriel	Coupling devices for the assembly of tubular elements	US2328468
467153	Muller, Jacques	Coupling for piping	US2474319

Class 286 - Packed shaft or rod joints

Serial Number	Inventor	Title	Patented
303345	Huhn, Felix Antonius	Packing for vessel propeller shafts
374404	Stromeier, Gustav	Arrangement for preventing the escape of oil from the axle boxes of railway vehicles	US2377387

Class 287 - Rod joints and couplings

Serial Number	Inventor	Title	Patented
275747	Meyer, Michel Joseph	Ball-and-socket joint for control transmissions	US2424409

Class 288 - Joint packings

Serial Number	Inventor	Title	Patented
360688	Seidel, Hans Joachim	Vibration damping suspension	US2369077

Class 289 - Tying cords or strands

Serial Number	Inventor	Title	Patented
379542	Furst, Stefan	Method and device for tieing thread ends in winding frames or other textile machines	US2349953

Class 290 - Prime-mover dynamo plants

Serial Number	Inventor	Title	Patented
450936	Wasiege, Charles Raymond	Engined compressor-generator unit	US2364013

Class 292 - Closure fasteners

Serial Number	Inventor	Title	Patented
303977	Diemer, Anton	Door-latches, especially for motor vehicles	US2240690
360523	Diemer, Anton	Door latches	US2347468
368728	Jacuelli, Mario	Hollow glass handle for doors and window locks
413856	van der Leun, Cornelis	Fastening devices for casement windows, doors and the like	US2350844

Class 294 - Handling, hand and hoist line implements

Serial Number	Inventor	Title	Patented
369452	Scharpenberg, Ewald & Bonnhoff, Herbert	Grab for hoisting loads	US2352017

Class 295 - Railway wheels and axles

Serial Number	Inventor	Title	Patented
296710	Sembdner, Gustav	Method of improving the surface of metallic parts	US2338977

Class 296 - Land vehicles, tops and bodies

Serial Number	Inventor	Title	Patented
134265	Koenig-Fachsenfeld, Freiherr Reinhard	Motor car bodies	US2359426
194754	Rabe, Karl	Vehicle bodies
236633	Komenda, Erwin	Sheet metal body
283011	Komenda, Erwin	Vehicle body	US2344092
287893	Mesnel, Pierre	Guideways for sliding windows	US2407671
322290	Kobligk, Kurt	Car body	US2369579
368684	Barenyi, Bela & Wilfert, Karl	Chassis for motor vehicles subdivided into a plurality of longitudinal sections
377449	Tandetzke, Karl	Automobile roof	US2390193
391888	Schulz, Conrad & Tandetzke, Karl	Vehicle body	US2356624

Class 299 - Fluid sprinkling, spraying, diffusing

Serial Number	Inventor	Title	Patented
281481	Voit, Willy	Injection nozzles for internal combustion engines	US2439832
285916	Schwaiger, Karl & Links, Heinz & Meiswinkel, Samuel	Injection nozzle for internal combustion engines
313845	Mai, Luigi	Perfections brought to atomizers for liquids	US2342288
314516	Voit, Willy	Cooled injection nozzle
330226	Anxionnaz, Rene & Imbert, Roger	Mechanical liquid fuel atomizing burner of variable discharge
388699	Rotheim, Erik (by his heirs, Rotheim, Erica & Rotheim, Hagbarth)	Liquid spraying apparatus	US2348851

Class 301 - Land vehicles, wheels and axles

Serial Number	Inventor	Title	Patented
330510	Lentz, Anton	Running wheel support
381146	Kattwinkel, Hans	Devices for controlling the brake action in railway cars and the like	US2415100

Class 305 - Land vehicles, wheel substitutes

Serial Number	Inventor	Title	Patented
342188	Pesarese, Fritz	Bushings
368866	Jirask, Wilhelm & Falk, Otto	Track chain vehicles	US2338436

Class 308 - Machine elements, bearings and guides

Serial Number	Inventor	Title	Patented
315990	Wuppermann, Theodor & Koenig, Friedrich	Adjustable bearings	US2348873
320217	Schmidt, Werner	Lubricating systems
340300	Wolfle, Robert	Bearing sleeve for rotary spindles in machine tools	US2356641
351777	Biagio, Beria	Bearings
368292	Barenyi, Bela	Disengageable connection, especially of two conical rubber-metal bushings	US2340503
392546	Rausch, Heinrich	Cage for cylindrical rollers
399460	Bauersfeld, Walther	Anti-friction bearing	US2399847

Class 309 - Machine elements, cylinders and pistons

Serial Number	Inventor	Title	Patented
328538	Bollee, Pierre & Bollee, Marcel	Expanding devices for piston rings
346964	Van Den Berg, Walter	Reservoirs for fluid filled cable	US2352041
402418	Cuvelier, Pierre Anselme Ignace	Piston and piston-rod rings
411083	Scheibe, Alfred	Scheibe, Alfred
418664	Neugebauer, Franz	Piston coupling