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Patents > Supplementary to patent : Patent US-1909-970771 or None & Number of figures: 6

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None (524) · Curtiss Aeroplane (3) · Sperry Gyroscope Company (3) · Aktiebolaget Aviatorer (3) · Alphonse Tellier et Cie (2) · British and Colonial Aeroplane Co. (2) · Société Zodiac‎ (2) · Sopwith Aviation Company Limited (2) · Vickers Ltd. (2) · Blackburn Aeroplane and Motor Co. (2)
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None (537) · Sperry Gyroscope Company (3)
National tech categories:
None (180) · FR 6.4 (112) · HU V/h (20) · AT 77d (13) · DE 77 (8) · USPC 244/119 (7) · USPC 244/6 (7) · FR 6.3 (6) · USPC 244/90R (6) · USPC 244/80 (6) · USPC 244/22 (5) · DE 77h.5 (5) · FR 6.2 (5) · USPC 244/48 (5) · USPC 244/100R (5) · USPC 244/66 (5)
IPCs:
None (271) · IPC B64C17/00 (28) · IPC B64C39/00 (26) · IPC B64C1/00 (25) · IPC B64B1/00 (19) · IPC B64C25/00 (13) · IPC B64C3/00 (11) · IPC B64C35/00 (10) · IPC B64C3/38 (9) · IPC B64C33/00 (8) · IPC B64C33/02 (8) · IPC B64C13/00 (8) · IPC B64C23/00 (8) · IPC B64C3/56 (7) · IPC B64C11/00 (7) · IPC B64B1/58 (5) · IPC B64C3/54 (5) · IPC B64C29/00 (5)
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