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Patents > CPCs : CPC B64C39/00 or CPC B64C39/005 & First filing: Yes

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None (164) · Airplane (97) · propulsion (57) · frame (47) · Design (47) · stability (33) · wings (31) · navigation (30) · Aerodynamics (21) · propellers (20) · whole (18) · LTA (18) · construction (18) · control (16) · propeller (15) · Lift (15) · helicopter (14) · hybrid (14) · rudder (12) · airfoil (12)
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None (148) · None (19) · Armengaud jeune (13) · Munn & Co. (10) · Marks & Clerk (8) · Weismann et Marx (5) · C. Blétry (4) · L. Chassevent (4) · J. Germain (4) · Chassevent (4) · E. Blétry (3) · Haseltine, Lake & Co. (3) · Lavoix et Mosès (3) · Dom. Casalonga (3) · G. de Mestral et F. Harle (3) · Brandon frères (3) · J. Bonnet-Thirion (3) · Boramé et Julien (3)
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None (180) · FR 6.4 (119) · USPC 244/20 (20) · USPC 244/70 (14) · USPC 244/9 (11) · USPC 244/119 (4) · USPC 244/39 (4) · USPC 244/19 (4) · DE 77h.5 (3) · FR 6.3 (3) · USPC 244/13 (3) · USPC 244/91 (2) · USPC 244/90R (2) · USPC 244/64 (2) · USPC 244/48 (2) · USPC 416/112 (2) · USPC 416/113 (2) · USPC 244/218 (2) · FR 6.1 (2)
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