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Patents > CPCs : CPC B64C39/00 or CPC B64C39/005 or CPC B64D17/52 (EP)

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Tech fields:
None (417) · Airplane (132) · frame (77) · design (71) · propulsion (66) · stability (43) · wings (36) · navigation (36) · construction (33) · propellers (30) · lift (28) · whole (27) · propeller (23) · LTA (22) · hybrid (21) · aerodynamics (18) · control (18) · airfoil (16) · fuselage (16)
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Supplementary to patent:
None (551) · Patent FR-1916-502839 (3) · Patent US-1910-996592 (3)
Related to aircraft:
Patent agent:
None (317) · None (27) · Armengaud jeune (22) · Marks & Clerk (13) · Munn & Co. (11) · J. Bonnet-Thirion (9) · Weismann et Marx (8) · E. Blétry (8) · J. Germain (7) · G. de Mestral et F. Harle (6) · Charles Assi (6) · Brandon frères (6) · Boult, Wade & Tennant (6) · Boramé et Julien (6) · Y. Rabilloud et fils (6) · G. Petiau (5) · Chassevent (5) · L. Chassevent (5) · Dupont et Elluin (5) · C. Blétry (5)
National tech categories:
None (349) · FR 6.4 (241) · USPC 244/20 (21) · USPC 244/70 (17) · USPC 244/9 (13) · FR 6.3 (11) · DE 77h.5 (7) · USPC 244/19 (5) · USPC 244/13 (4) · USPC 244/119 (4) · USPC 244/39 (4)
CPCs: (Click arrow to add another value)
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