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Patents > First filing: Yes & Number of figures: 6

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None (446) · Budapest (5) · London (5) · New York (5) · Berlin (4) · New York City (4) · New York county (3) · Oklahoma (3) · Allegheny county, Pennsylvania (3) · Pennsylvania (3) · St. Louis (3) · England (3)
Applicant firm:
None (477) · Curtiss Aeroplane (3) · Vickers Ltd. (2) · Sperry Gyroscope Company (2) · Sopwith Aviation Company Limited (2) · Société Zodiac‎ (2) · Blackburn Aeroplane and Motor Co. (2) · British and Colonial Aeroplane Co. (2) · Motorluftschiff Studiengesellschaft m.b.H (2) · E. Rumpler Luftfahrzeugbau G.m.b.H. (2)
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Supplementary to patent:
None (491) · Patent FR-1909-401348 (2) · Patent DE-1907-194166 (2) · Patent DE-1909-05-03 Hans Lohmann (2)
Related to aircraft:
Assigned to:
None (491) · Sperry Gyroscope Company (2)
National tech categories:
None (197) · FR 6.4 (95) · AT 77d (8) · HU V/h (8) · USPC 244/119 (7) · USPC 244/80 (6) · USPC 244/22 (6) · DE 77 (6) · USPC 244/90R (6) · USPC 244/100R (6) · USPC 244/6 (6) · USPC 244/48 (5) · FR 6.3 (5) · DE 77h.5 (5) · FR 6.2 (5) · USPC 244/87 (5)
IPCs:
None (244) · IPC B64C39/00 (27) · IPC B64C17/00 (22) · IPC B64C1/00 (22) · IPC B64B1/00 (19) · IPC B64C25/00 (15) · IPC B64C23/00 (13) · IPC B64C3/38 (12) · IPC B64C3/00 (10) · IPC B64C33/00 (9) · IPC B64C13/00 (8) · IPC B64C35/00 (7) · IPC B64C11/00 (7) · IPC B64C33/02 (6) · IPC B64C25/60 (5) · IPC B64C3/54 (5) · IPC B64B1/58 (5)
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Citations from after 1930:
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