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Patents > Granted: Yes & IPCs : IPC B64C33/00 or IPC B64C39/00

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Tech fields:
airplane (211) · design (133) · Propulsion (97) · None (93) · frame (90) · wings (79) · stability (73) · construction (64) · propellers (62) · aerodynamics (47) · Lift (46) · Control (42) · flapping (39) · navigation (38) · whole (38) · sustentation (34) · Rudder (30) · fuselage (27) · HTA (26) · hybrid (25)
Full specification filed date:
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Supplementary to patent:
None (393) · Patent FR-1916-502839 (4) · Patent US-1916-1208684 (3) · Patent US-1910-996592 (3) · Patent US-1908-927605 (2) · Patent NZ-1909-26981 (2) · Patent FR-1909-395148 (2) · Patent FR-1908-396470 (2) · Patent FR-1913-461629 (2) · Patent FR-1909-403418 (2) · Patent US-1910-993987 (2) · Patent GB-1908-4519 (2) · Patent FR-1908-394418 (2) · Patent FR-1912-441089 (2) · Patent US-1911-994106 (2) · Patent FR-1910-414004 (2) · Patent FR-1902-326476 (2) · Patent FR-1910-421136 (2) · Patent FR-1911-429078 (2) · Patent FR-1917-502839.21604 (2)
Related to aircraft:
Patent agent:
None (123) · None (35) · Armengaud jeune (26) · J. Bonnet-Thirion (14) · Marks & Clerk (14) · Weismann et Marx (13) · E. Blétry (12) · J. Germain (10) · Brandon frères (8) · Y. Rabilloud et fils (8) · Borame et Julien (8) · Boult, Wade & Tennant (7) · Dupont et Elluin (7) · L. Chassevent (7) · Munn & Co. (7) · G. de Mestral et F. Harlé (6) · Chassevent (6) · Charles Assi (6) · C. Blétry (6)
National tech categories:
FR 6.4 (309) · None (144) · USPC 244/45R (14) · FR 6.3 (13) · USPC 244/22 (12) · USPC 244/13 (10) · DE 77h.5 (9) · USPC 244/11 (7) · DE 77h.11 (6) · USPC 244/70 (6) · FR 6.2 (4) · USPC 244/27 (4) · USPC 244/9 (3) · USPC 244/20 (3) · USPC 244/72 (3) · USPC 244/19 (3) · USPC 244/64 (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (297) · CPC B64C2700/6295 (258) · CPC B64C39/005 (63) · CPC B64C33/00 (63) · CPC B64C39/08 (46) · CPC B64C39/008 (29) · CPC B64C39/003 (19) · CPC B64C39/006 (12) · CPC B64C33/02 (12) · CPC B64C39/06 (4) · CPC B64C39/062 (4) · CPC B64C3/42 (4) · CPC B64C3/385 (4) · CPC B64C3/56 (3) · None (3)
First filing:
Citations from after 1930:

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