Drilldown: Patents

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Patents > Year granted: 1920 & IPCs: None & Cites these patents: None

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None (65) · Francis J PLYM (3) · John William Rapp (3) · Harris G Hooper (3) · Serge Vincent De Bolotoff (2) · Louis Paulhan (2) · Ralph Hazlett UPSON (2) · Melville W MIX (2) · Alliott Verdon Roe (2) · Christian Lorenzen (2)
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None (51) · Frederick Handley Page (6) · KAWNEER (4) · John William Rapp (4) · Harris G Hooper (3) · HANRIOT (3) · Christian Lorenzen (2) · MIX MELVILLE W (2) · Louis Paulhan (2) · MOTEURS SALMSON (2) · Chessborough Mackenzie-Kennedy (2) · James Vernon Martin (2) · GOODYEAR TIRE RUBBER (2) · Alliott Verdon Roe (2) · Serge Vincent De Bolotoff (2)
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None (150) · Patent 1917-01-19 Siemens & Halske A.-G. (1) · Patent 1917-03-15 Siemens & Halske Aktiengesellshaft (1) · Patent 1918-01-07 Gábor Szakáts (1) · Patent AT-1915-79205 (1) · Patent AT-1917-77075 (1) · Patent AT-1917-79539 (1) · Patent AT-1917-84294 (1) · Patent CA-1918-192493 (1) · Patent DE 1916-10-24 Gesellschaft für Apparatenbau A. R. Ahrent und P. Heylandt G.m.b.H. (1) · Patent DE 1916-12-01 Gesellschaft für Apparatenbau A. R. Ahrent és P. Heylandt G.m.b.H. (1) · Patent DE 1916-12-07 Gesellschaft für Apparatenbau A. R. Ahrent und P. Heylandt G.m.b.H. (1) · Patent DE-1913-10-03 Optische Signale G. m. b. H. (1) · Patent DE-1913-11-15 Allgemeine Elektricitäts-Gesellschaft (1) · Patent DE-1914-11-12 Dr. Erich F. Huth G. m. b. H. (1) · Patent DE-1914-321808 (1) · Patent DE-1915-04-16 Luftfahrzeug-Gesellschaft m. b. H. (1) · Patent DE-1915-05-04 Luftfahrzeug-Gesellschaft m. b. H. (1) · Patent DE-1915-08-16 Allgemeine Elektricitäts-Gesellschaft‎ (1) · Patent DE-1915-12-21 Siemens-Schuckert Werke GmbH (1) · Patent DE-1916-01-11 Siemens-Schuckert Werke GmbH (1) · Patent DE-1916-01-23 Albert Rupp (1) · Patent DE-1916-03-06 Gothaer Waggonfabrik A. G. (1) · Patent DE-1916-03-21 Allgemeine Elektricitäts-Gesellschaft (1) · Patent DE-1916-03-30 Luftfahrzeugbau Schütte-Lanz (1) · Patent DE-1916-04-18 Jakob Haw (1) · Patent DE-1916-05-12 Gothaer Waggonfabrik A. G. (1) · Patent DE-1916-05-26 Gothaer Waggonfabrik A. G. (1) · Patent DE-1916-10-07 Oscar Gerhardt (1) · Patent DE-1917-05-29-Detlev Zickler (1) · Patent DE-1918-321397 (1) · Patent DE-1919-319462 (1) · Patent FR-1912-458772 (1) · Patent FR-1913-456298 (1) · Patent GB-1916-112480 (1) · Patent GB-1917-128301 (1) · Patent GB-1917-128630 (1) · Patent IT-1916-08-29 Castagneris (1)
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CPCs:
None (54) · CPC B64C2700/6256 (10) · CPC B64C13/00 (9) · CPC B64C3/00 (9) · CPC B64C2700/6295 (9) · CPC B64C17/00 (9) · CPC B64C39/00 (8) · CPC B64C3/18 (6) · CPC B64C11/04 (6) · CPC B64C2700/6233 (6) · CPC B64C3/185 (5) · CPC B62C5/04 (5) · CPC B64C2700/6218 (4) · CPC B64C23/005 (4) · CPC B64C2700/6212 (4)
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