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Patents > CPCs: CPC B64C33/02

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None (130) · flapping (90) · propulsion (54) · ornithopter (52) · frame (47) · wings (41) · navigation (32) · airplane (30) · propeller (21) · LTA (19) · Design (17) · rudder (16) · hybrid (16) · stability (15) · airfoil (13) · wing (11) · wheels (11) · landing (11) · takeoff (10)
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None (274) · Patent FR-1912-446040 (4) · Patent GB-1909-12556 (3) · Patent IT-1907-87304 (2) · Patent FR-1908-407411 (2) · Patent DE-1910-09-03 Richard Blum (2) · Patent FR-1909-420004 (2)
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None (202) · None (10) · Armengaud jeune (4) · 0 (3) · Marks & Clerk (3) · Munn & Co. (3) · C. A. Snow & Co. (3) · Schwab (3) · Rigot et Prévost (3) · C. Blétry (3)
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