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

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None (130) · flapping (101) · frame (63) · ornithopter (60) · propulsion (59) · airplane (51) · wings (48) · navigation (35) · landing (34) · Design (27) · wheels (24) · propeller (24) · LTA (21) · Rudder (20) · hybrid (19) · stability (18) · construction (16) · airfoil (14) · Takeoff (14) · chassis (14)
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None (307) · Patent FR-1912-446040 (4) · Patent GB-1909-12556 (3) · Patent BE-1910-12-28-Muehter (3) · Patent DE-1910-09-03 Richard Blum (2) · Patent IT-1907-87304 (2) · Patent DE-1909-244441 (2) · Patent FR-1909-420004 (2) · Patent FR-1908-407411 (2)
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None (186) · None (13) · Armengaud jeune (11) · Munn & Co. (6) · Victor J. Evans (4) · E. Blétry (4) · C. Blétry (4) · C. A. Snow & Co. (4) · Marks & Clerk (3) · Dupont et Elluin (3) · Rigot et Prévost (3) · Chassevent (3) · Schwab (3) · Hippolyte Josse (3) · Ad. Sturm (3) · A. de Carsalade (3)
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