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Patents > Year filed: 1911 & Assigned to : Sperry Gyroscope Company or None

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Year filed:
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Inventor country:
FR (423) · US (372) · DE (159) · GB (83) · IT (34) · AT (26) · None (21) · AU (14) · CA (14) · CH (13) · HU (13) · RU (12) · BE (12) · RO (7) · NO (5) · Prussia (4) · Poland (4) · ES (4) · VN (3)
Inventor location:
None (1133) · Seine (13) · Paris (6) · Budapest (5) · New York City (4) · New York (4) · London (4) · Nord (4) · Massachusetts (4) · New York county (4) · California (4) · Douai (3)
Applicant firm:
None (1163) · Luft-Verkehrs-Gesellschaft m.b.H. (7) · Borrmann and Kaerting (3) · Aéroplanes Morane-Saulnier (3) · Société Antoinette (2) · Luftschiffantrieb-Gesellschaft m. b. H. (2) · E. Rumpler Luftfahrzeugbau G.m.b.H. (2) · Société Industrielle de Delle (2) · British and Colonial Aeroplane Co. (2) · Ateliers d'aviation Louis Bréguet (2) · Rheinische Metallwaaren und Maschinenfabrik (2)
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National tech categories:
None (407) · FR 6.4 (365) · HU V/h (31) · AT 77d (15) · FR 6.2 (15) · USPC 244/80 (14) · USPC 244/90R (13) · BE K (12) · DE 77h.5 (10) · USPC 244/76R (9) · USPC 244/144 (8) · USPC 244/22 (8) · USPC 244/233 (8)
IPCs:
None (592) · IPC B64C17/00 (100) · IPC B64C1/00 (80) · IPC B64C39/00 (77) · IPC B64C11/00 (27) · IPC B64C25/00 (22) · IPC B64C33/02 (21) · IPC B64C3/00 (20) · IPC B64C23/00 (19) · IPC B64B1/00 (18) · IPC B64C3/38 (18) · IPC B64C17/06 (14) · IPC B64C3/54 (13) · IPC B64B1/58 (11) · IPC B64C3/56 (9) · IPC B64C11/16 (8) · IPC B64B1/40 (7) · IPC CPC B64C13/00 (7) · IPC B64D17/00 (7)
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Citations from after 1930:
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