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Patents > Assigned to: None & National tech categories : FR 6.4 or USPC 244/3.23 or USPC 244/9 & IPCs: IPC B64C39/00

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Tech fields:
Airplane (141) · Design (89) · Frame (50) · None (43) · wings (42) · propellers (42) · construction (42) · stability (38) · propulsion (38) · aerodynamics (35) · Lift (28) · control (25) · Sustentation (23) · whole (21) · rudder (20) · fuselage (18) · chassis (17) · heavier-than-air (13) · landing (12) · monoplane (12)
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None (171) · Patent FR-1908-396470 (2) · Patent FR-1909-403418 (2) · Patent FR-1913-461629 (2) · Patent FR-1908-394418 (2) · Patent FR-1912-441089 (2) · Patent FR-1910-414004 (2)
Related to aircraft:
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None (39) · None (24) · Armengaud jeune (22) · J. Bonnet-Thirion (12) · J. Germain (10) · Y. Rabilloud et fils (8) · E. Blétry (8) · Boramé et Julien (7) · Weismann et Marx (7) · L. Chassevent (6) · Dupont et Elluin (6) · Brandon frères (6) · G. de Mestral et F. Harle (5) · Charles Assi (5) · C. Blétry (5) · Ch. Mardelet (5) · Société A. Frey et de Carsalade (4) · Chassevent (4) · Lavoix et Mosès (4) · G. Petiau (4)
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