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Patents > CPCs : CPC B64C2700/6256 or CPC B64C2700/6274 or IPC B64C25/36

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None (175) · airplane (84) · control (64) · steering (38) · design (31) · Stability (30) · Propulsion (27) · propellers (25) · wings (21) · Ascension (21) · frame (20) · helicopter (19) · hybrid (19) · construction (19) · rudder (18) · lift (18) · aerodynamics (17) · navigation (17) · sustentation (12) · subsystem (12)
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None (298) · Patent DE-1909-220044 (2) · Patent FR-1908-394254‎ (2) · Patent GB-1911-04-28 Belton Tattnall Hamilton (2) · Patent GB-1913-3848 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent FR-1915-525800 (2) · Patent FR-1908-407090 (2) · Patent US-1909-1008096 (2) · Patent FR-1909-410140 (2) · Patent FR-1912-451312 (2) · Patent US-1913-1118124 (2) · Patent AT-1909-40038 (2)
Related to aircraft:
Patent agent:
None (156) · Armengaud jeune (11) · Marks & Clerk (10) · None (10) · Brewer & Son (8) · Boult, Wade & Tennant (6) · E. Blétry (5) · Weismann et Marx (5) · J. Germain (5) · Paul Caquet (4) · Brierley & Howard (4) · G. de Mestral et F. Harlé (4) · L. Chassevent (4)
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