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Patents > CPCs : CPC A63H27/00 or CPC B64C23/005 or CPC B64C39/00

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None (771) · Seine (14) · Nord (8) · Paris (7) · London (5) · California (4) · Lille (4) · Aisne (4) · Seine-et-Oise (4) · New York (4) · Hérault (3) · Indiana (3) · Loir-et-Cher (3) · Chicago (3) · Montpellier (3) · Eure (3) · Pennsylvania (3)
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Tech fields:
None (383) · airplane (278) · design (139) · frame (121) · propulsion (110) · stability (81) · propellers (72) · wings (66) · construction (66) · hybrid (65) · helicopter (59) · navigation (56) · lift (55) · aerodynamics (49) · propeller (49) · whole (41) · control (40) · sustentation (33) · ascension (31) · rudder (28)
Full specification filed date:
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Supplementary to patent:
None (709) · Patent FR-1909-410140 (5) · Patent FR-1910-414004 (3) · Patent FR-1916-502839 (3)
Related to aircraft:
Patent agent:
None (335) · None (47) · Armengaud jeune (22) · J. Bonnet-Thirion (15) · Marks & Clerk (14) · G. de Mestral et F. Harlé (11) · Victor J. Evans (11) · E. Bletry (10) · J. Germain (10) · Munn & Co. (9) · Brandon frères (9) · Chassevent (9) · W. P. Thompson & Co. (9) · Borame et Julien (8) · Boult, Wade & Tennant (8) · Schwab (8) · Charles Dony (7) · Weismann et Marx (7) · L. Chassevent (7)
National tech categories:
None (384) · FR 6.4 (350) · USPC 244/6 (47) · USPC 244/66 (20) · USPC 244/12.1 (15) · DE 77h.5 (10) · FR 6.3 (9) · USPC 244/80 (7) · USPC 244/60 (6) · USPC 244/35R (6) · USPC 244/13 (5) · USPC 244/100R (5) · USPC 244/139 (5) · FR 20.1 (5) · DE 77 (5) · USPC 244/48 (4)
IPCs:
None (355) · IPC B64C39/00 (302) · IPC B64C23/00 (219) · IPC B64C23/005 (8) · IPC A63H27/00 (8) · IPC A63H29/18 (4) · IPC B64C39/08 (3) · IPC A63H27/22 (3)
CPCs: (Click arrow to add another value)
First filing:
Cites these patents:
None (900)
Citations from after 1930:
Number of diagram pages:

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