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Patents > National tech categories: FR 6.4 & IPCs : IPC B64C33/00 or IPC B64C39/00

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Tech fields:
airplane (143) · design (94) · Frame (53) · Wings (48) · None (45) · Construction (44) · propulsion (44) · propellers (42) · stability (41) · aerodynamics (36) · Lift (33) · control (25) · sustentation (25) · whole (23) · rudder (20) · fuselage (18) · flapping (17) · chassis (17) · heavier-than-air (15) · hybrid (14)
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Supplementary to patent:
None (192) · Patent FR-1908-394418 (2) · Patent FR-1910-414004 (2) · Patent FR-1909-403418 (2) · Patent FR-1913-461629 (2) · Patent FR-1911-429078 (2) · Patent FR-1908-396470 (2) · Patent FR-1912-441089 (2)
Related to aircraft:
Patent agent:
None (46) · None (28) · Armengaud jeune (25) · J. Bonnet-Thirion (13) · E. Blétry (11) · Weismann et Marx (11) · J. Germain (10) · Boramé et Julien (8) · Y. Rabilloud et fils (8) · L. Chassevent (7) · Brandon frères (7) · C. Blétry (6) · Dupont et Elluin (6) · Ch. Mardelet (5) · Lavoix et Mosès (5) · Charles Assi (5) · G. de Mestral et F. Harlé (5)
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