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Patents > IPCs : IPC B64C13/00 or IPC B64C27/10 or IPC B64C33/02

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Tech fields:
None (120) · control (74) · airplane (48) · flapping (46) · wings (37) · steering (34) · propulsion (30) · Ornithopter (26) · Stability (25) · frame (24) · rudder (24) · navigation (22) · design (16) · subsystem (16) · LTA (13) · HTA (12) · aerodynamics (12) · Lift (12) · construction (11) · propellers (11)
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Supplementary to patent:
None (250) · Patent FR-1912-446040 (4) · Patent BE-1910-12-28-Muehter (3) · Patent FR-1909-420004 (2) · Patent DE-1918-388537 (2) · Patent GB-1911-04-28 Belton Tattnall Hamilton (2) · Patent DE-1910-09-03 Richard Blum (2) · Patent US-1913-1118124 (2)
Related to aircraft:
Patent agent:
None (97) · None (16) · Armengaud jeune (14) · Marks & Clerk (13) · Weismann et Marx (8) · Brewer & Son (7) · Munn & Co. (7) · Haseltine, Lake & Co. (6) · Boult, Wade & Tennant (5) · E. Blétry (5) · Ad. Sturm (4) · Brierley & Howard (4) · A. de Carsalade (4) · Brandon frères (4)
National tech categories:
FR 6.4 (141) · None (96) · DE 77h.10 (24) · DE 77h.5 (15) · DE 77 (14) · FR 6.3 (10) · USPC 244/22 (9) · USPC 244/233 (8) · USPC 244/234 (7) · USPC 244/231 (6) · USPC 244/72 (6) · USPC 244/225 (3) · DE 62b.15 (3) · USPC 244/87 (3) · USPC 244/237 (3)
IPCs: (Click arrow to add another value)
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