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Patents > CPCs : CPC B64C25/52 or CPC B64C33/02

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None (333) · Seine (8) · Paris (4) · Chicago (3) · Morbihan (3) · Lorient (3) · Rhône (3) · Missouri (3) · Brooklyn (2) · Hérault (2) · Cleveland (2) · St. Louis (2) · Montpellier (2) · Berlin (2) · London (2) · Seine-et-Oise (2)
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Tech fields:
flapping (116) · None (100) · ornithopter (76) · frame (65) · propulsion (63) · wings (53) · airplane (52) · navigation (34) · landing (34) · design (28) · propeller (25) · hybrid (23) · wheels (23) · LTA (20) · stability (19) · rudder (19) · construction (18) · takeoff (16) · chassis (14)
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Supplementary to patent:
None (296) · Patent FR-1912-446040 (4) · Patent GB-1909-12556 (3) · Patent BE-1910-12-28-Muehter (3) · Patent FR-1908-407411 (3) · Patent DE-1909-244441 (2) · Patent FR-1909-420004 (2) · Patent DE-1907-217533 (2) · Patent IT-1907-87304 (2) · Patent DE-1910-09-03 Richard Blum (2)
Related to aircraft:
Patent agent:
None (137) · None (18) · Armengaud jeune (11) · Munn & Co. (7) · E. Blétry (7) · Victor J. Evans (6) · C. A. Snow & Co. (6) · J. Germain (5) · Hippolyte Josse (4) · Ad. Sturm (4) · Schwab (4) · C. Blétry (4) · Marks & Clerk (3) · Dupont et Elluin (3) · Chassevent (3) · Rigot et Prévost (3) · P. Follin (3) · A. de Carsalade (3)
National tech categories:
FR 6.4 (131) · None (91) · USPC 244/22 (69) · DE 77h.10 (22) · USPC 244/72 (19) · DE 77 (13) · USPC 244/100R (12) · FR 6.3 (9) · USPC 244/104R (6) · DE 77h (4) · USPC 244/64 (3) · GB 4 propelling (2) · FR 6.2 (2) · GB 4 propel & steer (2) · USPC 244/133 (2) · USPC 244/50 (2)
CPCs: (Click arrow to add another value)
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