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Patents > IPCs : IPC B64C23/00 or IPC B64C39/00 & Number of diagram pages: 1-3

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Tech fields:
airplane (239) · Design (143) · None (107) · propulsion (100) · frame (89) · wings (76) · propellers (75) · Construction (69) · stability (69) · lift (51) · aerodynamics (51) · control (45) · hybrid (44) · whole (41) · sustentation (40) · navigation (33) · helicopter (33) · ascension (32) · LTA (28) · chassis (28)
Full specification filed date:
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Supplementary to patent:
None (388) · Patent FR-1909-410140 (5) · Patent US-1916-1208684 (3) · Patent FR-1910-414004 (3)
Related to aircraft:
Patent agent:
None (96) · None (37) · Armengaud jeune (24) · Marks & Clerk (18) · J. Bonnet-Thirion (15) · J. Germain (12) · E. Blétry (12) · G. de Mestral et F. Harlé (11) · Boramé et Julien (11) · Boult, Wade & Tennant (9) · Weismann et Marx (8) · L. Chassevent (8) · Y. Rabilloud et fils (8) · C. Blétry (8) · Brandon frères (8) · Dupont et Elluin (8) · Chassevent (6) · Charles Assi (6) · Paul Caquet (6) · Schwab (6)
National tech categories:
FR 6.4 (348) · None (143) · USPC 244/45R (13) · DE 77h.5 (10) · FR 6.3 (10) · USPC 244/70 (6) · DE 77 (6) · DE 77h.11 (6) · USPC 244/13 (6) · FR 6.2 (5) · USPC 244/27 (4) · USPC 244/6 (3) · USPC 244/87 (2) · USPC 244/66 (2) · USPC 244/50 (2) · USPC 244/9 (2) · USPC 244/903 (2) · USPC 416/113 (2) · USPC 244/20 (2) · DE 77h.8 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (269) · CPC B64C2700/6295 (231) · CPC B64C23/005 (147) · CPC B64C2700/6274 (93) · CPC B64C39/005 (51) · CPC B64C39/08 (42) · CPC B64C39/008 (23) · CPC B64C2700/6273 (14) · CPC B64C39/003 (13) · CPC B64C39/006 (8) · CPC B64C2700/6271 (6) · CPC B64C39/06 (4) · CPC B64C39/062 (4) · CPC B64C23/00 (3) · CPC B64C3/56 (3) · None (3)
First filing:
Cites these patents:
None (577)
Citations from after 1930:
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