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Patents > IPCs : IPC B64C13/00 or IPC B64C33/00 or IPC B64C39/00

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Tech fields:
Airplane (280) · design (155) · control (121) · None (120) · frame (110) · stability (103) · propulsion (101) · wings (100) · construction (74) · Propellers (66) · aerodynamics (62) · lift (58) · navigation (57) · rudder (57) · steering (55) · flapping (46) · sustentation (38) · Whole (38) · fuselage (30)
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Supplementary to patent:
None (531) · 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 (169) · None (38) · Armengaud jeune (36) · Marks & Clerk (22) · Weismann et Marx (20) · J. Bonnet-Thirion (14) · Boult, Wade & Tennant (14) · E. Blétry (14) · J. Germain (11) · Brandon frères (10) · Munn & Co. (10) · Y. Rabilloud et fils (10) · Dupont et Elluin (9) · Brewer & Son (9) · Haseltine, Lake & Co.‎ (8) · L. Chassevent (8) · Boramé et Julien (8) · H. Bœttcher fils (7)
National tech categories:
FR 6.4 (369) · None (221) · DE 77h.5 (24) · USPC 244/22 (16) · FR 6.3 (14) · USPC 244/45R (14) · USPC 244/13 (10) · USPC 244/233 (9) · USPC 244/234 (9) · USPC 244/11 (7) · USPC 244/70 (6) · DE 77h.11 (6) · USPC 244/87 (5) · USPC 244/231 (5) · FR 6.2 (4) · USPC 244/27 (4) · USPC 244/72 (4) · USPC 244/225 (4)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (303) · CPC B64C2700/6295 (265) · CPC B64C13/00 (168) · CPC B64C2700/6256 (105) · CPC B64C33/00 (67) · CPC B64C39/005 (65) · CPC B64C39/08 (48) · CPC B64C39/008 (29) · CPC B64C39/003 (19) · CPC B64C33/02 (17) · CPC B64C39/006 (12) · CPC B64C2700/6259 (7) · CPC B64C39/06 (4) · CPC B64C3/42 (4) · CPC B64C3/385 (4) · None (4) · CPC B64C39/062 (4) · CPC B64C39/068 (3) · CPC B64C3/56 (3)
First filing:
Citations from after 1930:

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