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Patents > CPCs : CPC B64C2700/6218 or CPC B64C33/02 or CPC B64C39/026

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Tech fields:
None (191) · stability (170) · Airplane (153) · flapping (104) · frame (72) · automatic stability (70) · wings (65) · propulsion (64) · ornithopter (61) · design (60) · control (39) · navigation (37) · aerodynamics (37) · rudder (31) · equilibrium (29) · propeller (26) · subsystem (24) · LTA (23) · construction (23) · propellers (21)
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Supplementary to patent:
None (448) · Patent FR-1912-446040 (4) · Patent BE-1910-12-28-Muehter (3) · Patent GB-1909-12556 (3) · Patent DE-1911-11-16 Otto Albin Budig (3)
Related to aircraft:
Patent agent:
None (252) · None (26) · Armengaud jeune (13) · E. Blétry (8) · Brandon frères (7) · Marks & Clerk (6) · Boult, Wade & Tennant (6) · J. Fayollet (6) · P. Follin (5) · C. A. Snow & Co. (5) · Schwab (5) · C. Baumann (5) · Munn & Co. (5) · J. Bonnet-Thirion et Breton (5)
National tech categories:
None (226) · FR 6.4 (221) · USPC 244/22 (71) · USPC 244/72 (19) · DE 77h.10 (16) · DE 77 (14) · FR 6.3 (9) · DE 77h (5) · DE 77h.5 (3) · USPC 244/64 (3) · USPC 244/4R (2) · GB 4 propelling (2) · USPC 244/133 (2) · GB 4 propel & steer (2) · FR 6.2 (2)
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