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Patents > CPCs : CPC B63H1/26 or CPC B64C3/385 or CPC B64C39/00

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Tech fields:
None (533) · Airplane (176) · Frame (82) · design (77) · stability (60) · wings (47) · construction (42) · propellers (37) · propulsion (35) · control (34) · Lift (33) · navigation (30) · whole (28) · aerodynamics (23) · airfoil (22) · rudder (20) · fuselage (19) · monoplane (19) · wheels (19) · biplane (18)
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Supplementary to patent:
None (654) · Patent FR-1908-392672 (4) · Patent FR-1916-502839 (3) · Patent US-1910-996592 (3) · Patent FR-1912-449167 (3) · Patent US-1912-1062545 (3) · Patent BE-1912-02-07-Gramaticesco (3)
Related to aircraft:
Patent agent:
None (374) · None (32) · Armengaud jeune (29) · Marks & Clerk (15) · J. Bonnet-Thirion (13) · E. Blétry (11) · Weismann et Marx (9) · L. Chassevent (9) · J. Germain (8) · J. S. Withers & Spooner (8) · Y. Rabilloud et fils (8) · Brandon frères (7) · Dom. Casalonga (7) · Schwab (7)
National tech categories:
None (411) · FR 6.4 (311) · USPC 244/48 (26) · DE 77h.5 (17) · FR 6.2 (13) · USPC 244/99.11 (10) · USPC 244/38 (7) · USPC 244/90R (7) · USPC 244/119 (6) · USPC 244/13 (5) · FR 6.3 (5) · USPC 244/47 (3) · USPC 244/113 (3) · USPC 244/65 (3) · USPC 244/234 (3) · USPC 244/91 (3) · USPC 244/88 (3)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
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