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Patents > IPCs : IPC B64C27/04 or IPC B64C27/10 or IPC B64C33/02

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Tech fields:
None (104) · flapping (46) · propulsion (45) · helicopter (39) · ornithopter (27) · wings (25) · propellers (22) · airplane (21) · frame (19) · hybrid (16) · navigation (16) · design (15) · control (15) · HTA (13) · ascension (12) · LTA (12) · wing (10) · propeller (10) · subsystem (10)
Full specification filed date:
Application number:
None (50) · 22495318 (2)
Granted:
Supplementary to patent:
None (195) · Patent FR-1912-446040 (4) · Patent BE-1910-12-28-Muehter (3) · Patent FR-1915-478440 (2) · Patent FR-1908-407090 (2) · Patent FR-1908-403650 (2) · Patent FR-1909-420004 (2) · Patent US-1911-1011761 (2) · Patent DE-1910-09-03 Richard Blum (2) · Patent FR-1915-502520 (2)
Related to aircraft:
Patent agent:
None (88) · None (21) · Armengaud jeune (9) · Marks & Clerk (7) · J. Germain (7) · C. Blétry (5) · Schwab (5) · J. S. Withers & Spooner (4) · Ad. Sturm (4) · Lavoix et Moses (4) · Y. Rabilloud et fils (4) · Brandon frères (4)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C33/02 (164) · CPC B64C2700/6281 (83) · CPC B64C27/04 (63) · CPC B64C27/12 (22) · CPC B64C27/20 (10) · None (7) · CPC B64C27/52 (6) · CPC B64C27/10 (6) · CPC B64C33/00 (4) · CPC B64C29/0025 (4) · CPC B64C33/025 (3) · CPC B64C39/06 (3) · CPC B64C2201/108 (2) · CPC B64C23/005 (2) · CPC B64C27/00 (2) · CPC B64C2700/6273 (2) · CPC B64C2201/024 (2) · CPC B64C39/024 (2)
First filing:
Citations from after 1930:
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