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Patents > CPCs : CPC B64C23/005 or CPC B64C2700/6256 or CPC B64C39/005

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Tech fields:
None (329) · Airplane (182) · propulsion (117) · navigation (81) · frame (78) · stability (70) · control (69) · propeller (63) · hybrid (63) · helicopter (62) · design (55) · steering (41) · wings (40) · LTA (38) · rudder (37) · Propellers (37) · ascension (33) · Lift (30) · construction (28) · aerodynamics (28)
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None (649) · Patent FR-1909-410140 (5) · Patent AT-1909-40038 (2) · Patent FR-1909-404954 (2) · Patent GB-1913-3848 (2) · Patent FR-1908-394254‎ (2) · Patent FR-1915-525800 (2) · Patent FR-1908-407090 (2) · Patent FR-1902-326476 (2) · Patent US-1909-1008096 (2) · Patent GB-1911-12188 (2) · Patent GB-1911-04-28 Belton Tattnall Hamilton (2) · Patent CA-1909-126457 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent FR-1912-451312 (2) · Patent US-1913-1118124 (2) · Patent US-1916-1208684 (2) · Patent AU-1916-630 (2) · Patent DE-1909-220044 (2)
Related to aircraft:
Patent agent:
None (333) · None (20) · Munn & Co. (15) · Marks & Clerk (15) · Armengaud jeune (14) · Victor J. Evans (9) · Brewer & Son (8) · Boult, Wade & Tennant (8) · E. Blétry (7) · J. Germain (6) · G. de Mestral et F. Harlé (6) · Weismann et Marx (6) · J. Bonnet-Thirion (5) · C. Blétry (5) · W. P. Thompson & Co. (5)
National tech categories:
None (346) · FR 6.4 (178) · USPC 244/6 (48) · USPC 244/66 (21) · USPC 244/20 (21) · USPC 244/70 (17) · USPC 244/12.1 (16) · USPC 244/9 (13) · FR 6.3 (11) · USPC 244/80 (7) · DE 77h.5 (7) · USPC 244/60 (6) · DE 77 (6) · USPC 244/139 (6) · USPC 244/39 (6) · USPC 244/48 (6) · USPC 244/35R (5) · USPC 244/119 (5) · USPC 244/19 (5)
CPCs: (Click arrow to add another value)
First filing:
Cites these patents:
None (756)
Citations from after 1930:
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