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Patents > CPCs : CPC B64C33/02 or CPC B64C39/005 & Number of text pages: 1-4

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None (291) · Seine (9) · Paris (5) · Rhône (3) · Meurthe-et-Moselle (2) · Cleveland (2) · Seine-et-Oise (2) · St. Louis (2) · Brooklyn (2) · Berlin (2) · Montpellier (2) · Hérault (2)
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flapping (104) · propulsion (84) · ornithopter (64) · None (61) · Frame (53) · airplane (47) · Wings (45) · navigation (40) · LTA (31) · propeller (31) · hybrid (30) · Design (25) · Stability (20) · rudder (19) · propellers (15) · landing (15) · helicopter (14) · parachute (14) · HTA (13) · airfoil (13)
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None (263) · Patent FR-1912-446040 (4) · Patent BE-1910-12-28-Muehter (3) · Patent FR-1908-407411 (3) · Patent DE-1907-217533 (2) · Patent FR-1911-429078 (2) · Patent CA-1909-126457 (2) · Patent IT-1907-87304 (2) · Patent GB-1909-12556 (2) · Patent FR-1902-326476 (2) · Patent DE-1909-244441 (2) · Patent FR-1909-420004 (2)
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None (77) · None (22) · Munn & Co. (14) · C. A. Snow & Co. (8) · E. Blétry (6) · J. Germain (6) · Victor J. Evans (5) · Armengaud jeune (5) · C. Blétry (5) · Ad. Sturm (4) · Boramé et Julien (3) · Chassevent (3) · Schwab (3) · Dupont et Elluin (3) · A. de Carsalade (3) · Marks & Clerk (3) · Herbert Haddan & Co. (3)
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FR 6.4 (109) · None (55) · USPC 244/22 (47) · DE 77h.10 (22) · USPC 244/72 (15) · DE 77 (14) · USPC 244/20 (14) · USPC 244/70 (13) · FR 6.3 (12) · USPC 244/9 (11) · USPC 244/64 (4) · DE 77h (4) · USPC 244/133 (3) · FR 6.2 (3) · USPC 244/39 (3)
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