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Patents > IPCs : IPC B64C23/00 or IPC B64C33/02 or IPC B64C5/04

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Tech fields:
None (144) · airplane (65) · propulsion (54) · flapping (49) · frame (38) · wings (35) · design (31) · hybrid (29) · navigation (27) · Ornithopter (26) · propellers (26) · control (24) · LTA (22) · stability (22) · construction (18) · propeller (17) · whole (17) · helicopter (17) · lift (16) · Ascension (15)
Full specification filed date:
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Supplementary to patent:
None (271) · Patent FR-1909-410140 (5) · Patent FR-1912-446040 (4) · Patent BE-1910-12-28-Muehter (3) · Patent FR-1915-525800 (2) · Patent FR-1909-420004 (2) · Patent FR-1909-404954 (2) · Patent FR-1908-394254 (2) · Patent DE-1910-09-03 Richard Blum (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent DE-1909-220044 (2) · Patent FR-1908-407090 (2) · Patent AT-1909-40038 (2)
Related to aircraft:
Patent agent:
None (99) · None (23) · Marks & Clerk (8) · E. Blétry (8) · Ad. Sturm (7) · Armengaud jeune (7) · Schwab (7) · Rigot et Prévost (6) · G. de Mestral et F. Harlé (6) · C. Blétry (6) · Boramé et Julien (6) · Chassevent (5) · A. de Carsalade (5) · J. Germain (5)
National tech categories:
FR 6.4 (194) · None (84) · DE 77h.10 (24) · FR 10.1 (18) · DE 77 (16) · FR 6.3 (13) · USPC 244/22 (9) · USPC 244/72 (6) · FR 10.2 (5) · DE 77h (3) · USPC 244/34R (3) · USPC 244/66 (3) · USPC 244/6 (3) · FR 6.2 (3) · USPC 244/64 (2) · DE 77h.5 (2) · GB 4 propel & steer (2) · USPC 244/39 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C23/005 (172) · CPC B64C33/02 (165) · CPC B64C2700/6274 (108) · None (24) · CPC B64C2700/6273 (16) · CPC B62C5/04 (15) · CPC B64C2700/6271 (10) · CPC B64C23/00 (6) · CPC B62C5/00 (4) · CPC B64C5/04 (4) · CPC B64C33/025 (4) · CPC B64C33/00 (3)
First filing:
Cites these patents:
None (398)
Citations from after 1930:
Number of diagram pages:

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