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Patents > IPCs : IPC B64C13/00 or IPC B64C33/02

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Tech fields:
control (83) · airplane (77) · flapping (61) · wings (47) · steering (41) · propulsion (39) · Stability (37) · frame (35) · None (34) · navigation (34) · design (33) · rudder (31) · ornithopter (27) · LTA (22) · subsystem (19) · aerodynamics (17) · construction (15) · lift (14) · propellers (13)
Full specification filed date:
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Supplementary to patent:
None (232) · Patent FR-1912-446040 (4) · Patent FR-1909-420004 (2) · Patent GB-1911-04-28 Belton Tattnall Hamilton (2) · Patent DE-1918-388537 (2) · Patent DE-1910-09-03 Richard Blum (2)
Related to aircraft:
Patent agent:
None (102) · Armengaud jeune (13) · None (12) · Marks & Clerk (9) · Brewer & Son (7) · Haseltine, Lake & Co.‎ (6) · Weismann et Marx (6) · Boult, Wade & Tennant (5) · Munn & Co. (5) · Brierley & Howard (4) · E. Blétry (4)
National tech categories:
FR 6.4 (126) · None (80) · DE 77h.10 (16) · DE 77h.5 (15) · USPC 244/22 (15) · DE 77 (12) · USPC 244/233 (9) · USPC 244/72 (9) · USPC 244/234 (7) · FR 6.3 (7) · USPC 244/231 (5) · USPC 244/237 (4) · DE 62b.15 (3) · USPC 244/89 (3) · USPC 244/225 (3) · USPC 244/87 (3) · USPC 244/222 (3)
IPCs: (Click arrow to add another value)
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