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Patents > National tech categories: FR 6.4 & IPCs : FR 6.3 or IPC B64C39/00

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Tech fields:
airplane (137) · Design (84) · frame (47) · None (45) · Construction (40) · propellers (40) · wings (40) · propulsion (37) · stability (36) · aerodynamics (32) · Lift (25) · control (23) · whole (20) · Sustentation (20) · rudder (19) · fuselage (16) · chassis (16) · heavier-than-air (14) · monoplane (12) · Landing (12)
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Supplementary to patent:
None (170) · Patent FR-1910-414004 (2) · Patent FR-1908-394418 (2) · Patent FR-1908-396470 (2) · Patent FR-1913-461629 (2) · Patent FR-1912-441089 (2)
Related to aircraft:
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None (37) · None (26) · Armengaud jeune (19) · J. Bonnet-Thirion (11) · J. Germain (10) · E. Blétry (8) · Brandon frères (7) · Y. Rabilloud et fils (7) · L. Chassevent (6) · Boramé et Julien (6) · Dupont et Elluin (6) · Weismann et Marx (6) · G. de Mestral et F. Harle (5) · Lavoix et Mosès (5) · Charles Dony (5) · C. Blétry (5) · G. Petiau (5) · Ch. Mardelet (5)
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