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Patents > IPCs : IPC B64C31/06 or IPC B64C33/00 or IPC B64C39/00

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Tech fields:
airplane (217) · Design (141) · Frame (108) · propulsion (101) · None (100) · wings (84) · stability (83) · construction (69) · propellers (64) · kite (55) · aerodynamics (52) · lift (50) · flapping (43) · control (43) · navigation (43) · Whole (40) · sustentation (35) · rudder (31) · hybrid (29)
Full specification filed date:
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Supplementary to patent:
None (450) · Patent FR-1916-502839 (4) · Patent US-1916-1208684 (3) · Patent AT-1912-75092 (3) · Patent US-1910-996592 (3)
Related to aircraft:
Patent agent:
None (155) · None (40) · Armengaud jeune (27) · Weismann et Marx (15) · Marks & Clerk (15) · J. Bonnet-Thirion (14) · E. Blétry (13) · Boult, Wade & Tennant (11) · Munn & Co. (10) · J. Germain (10) · Brandon frères (9) · Borame et Julien (9) · Dupont et Elluin (8) · Y. Rabilloud et fils (8) · L. Chassevent (7) · C. Blétry (7) · Charles Assi (6) · G. de Mestral et F. Harlé (6) · Chassevent (6)
National tech categories:
FR 6.4 (320) · None (171) · USPC 244/153R (24) · USPC 244/22 (14) · USPC 244/45R (14) · FR 6.3 (13) · USPC 244/13 (10) · DE 77h.5 (9) · FR 20.1 (8) · DE 77 (7) · USPC 244/11 (7) · USPC 244/155R (6) · USPC 244/70 (6) · DE 77h.11 (6) · USPC 244/27 (4) · FR 6.2 (4)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (304) · CPC B64C2700/6295 (265) · CPC B64C33/00 (67) · CPC B64C39/005 (65) · CPC A63H27/08 (57) · CPC B64C39/08 (48) · CPC B64C39/008 (29) · CPC B64C39/003 (19) · CPC B64C33/02 (14) · CPC B64C39/006 (12) · CPC A63H27/087 (7) · CPC B64C39/06 (4) · CPC B64C39/062 (4) · CPC B64C3/42 (4) · CPC B64C3/385 (4) · CPC B64C39/068 (3) · CPC B64C3/56 (3) · None (3)
First filing:
Citations from after 1930:

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