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Patents > IPCs : IPC B64C11/00 or IPC B64C27/04 or IPC B64D17/52

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Tech fields:
None (109) · Propulsion (75) · propellers (52) · helicopter (41) · airplane (27) · propeller (21) · design (19) · ascension (14) · navigation (12) · lift (12) · airship (12) · construction (11) · Subsystem (11) · hybrid (11) · aerial propeller (11) · LTA (10) · stability (9) · frame (9) · wings (9) · aerodynamics (9)
Full specification filed date:
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Supplementary to patent:
None (218) · Patent FR-1910-417989 (3) · Patent GB-1911-12232 (2) · Patent FR-1908-407090 (2) · Patent FR-1915-478440 (2) · Patent FR-1915-502520 (2) · Patent DE-1912-267069 (2) · Patent DE-1911-10-19 Vincent Wisniewski and-or Luftschiffsantrieb Gesellschaft mit Beschränkter Haftung (2) · Patent FR-1909-410848 (2) · Patent IT-1916-05-16 (2) · Patent AT-1909-48421 (2) · Patent US-1911-1011761 (2)
Related to aircraft:
Patent agent:
None (88) · None (19) · Armengaud jeune (17) · J. Germain (7) · Y. Rabilloud et fils (7) · J. Bonnet-Thirion (7) · Dom. Casalonga (6) · Marks & Clerk (6) · E. Blétry (6) · Schwab (5) · G. de Mestral et F. Harlé (5) · G. Petiau (5) · C. Blétry (4) · Boult, Wade & Tennant (4) · L. Chassevent (4) · Lavoix et Moses (4) · Lloyd Wise & Co. (4) · de Bongé (4)
National tech categories:
FR 6.4 (153) · None (89) · FR 6.3 (17) · FR 6.2 (13) · DE 77h.6 (7) · USPC 416/139 (5) · DE 77 (4) · USPC 244/65 (3) · DE 77h.5 (3) · FR 5.8 (3) · NL 62 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C11/006 (109) · CPC B64C2700/6281 (83) · CPC B64C27/04 (63) · CPC B64C11/00 (54) · CPC B64C27/12 (21) · CPC B64C11/001 (14) · CPC B64D2700/62692 (12) · CPC B64C11/005 (11) · CPC B64C27/20 (10) · CPC B64C27/52 (6) · CPC B64C11/346 (5) · CPC B64C29/0025 (4) · CPC B64C11/007 (4) · CPC B64C11/008 (3) · CPC B64D17/52 (3) · CPC B64C39/06 (3)
First filing:
Citations from after 1930:
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