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Patents > IPCs: IPC B64C39/00 & Number of text pages: 2-3

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Tech fields:
Airplane (119) · Design (80) · frame (52) · propulsion (45) · None (42) · construction (40) · stability (39) · Wings (36) · aerodynamics (32) · propellers (31) · Control (25) · whole (25) · Lift (22) · navigation (19) · aeroplane (18) · fuselage (17) · rudder (16) · monoplane (15) · chassis (15)
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Supplementary to patent:
None (198) · Patent FR-1916-502839 (4) · Patent FR-1909-403418 (2) · Patent FR-1902-326476 (2) · Patent FR-1908-396470 (2) · Patent NZ-1909-26981 (2) · Patent FR-1909-395148 (2) · Patent FR-1917-502839.21604 (2) · Patent FR-1912-441089 (2) · Patent US-1911-994106 (2) · Patent FR-1909-421311 (2) · Patent FR-1910-414004 (2)
Related to aircraft:
Patent agent:
None (64) · Armengaud jeune (17) · None (12) · J. Bonnet-Thirion (10) · E. Blétry (7) · J. Germain (7) · Weismann et Marx (6) · Marks & Clerk (6) · L. Chassevent (6) · Boramé et Julien (6) · Munn & Co. (4) · Boult, Wade & Tennant (4) · Chassevent (4) · Y. Rabilloud et fils (4) · G. de Mestral et F. Harlé (4)
National tech categories:
FR 6.4 (172) · None (68) · USPC 244/45R (10) · USPC 244/70 (6) · DE 77h.5 (6) · USPC 244/13 (6) · FR 6.3 (6) · DE 77h.11 (3) · USPC 244/27 (3) · USPC 244/20 (2) · USPC 244/9 (2) · USPC 244/903 (2) · USPC 416/113 (2) · DE 77h.8 (2) · FR 6.2 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (193) · CPC B64C2700/6295 (187) · CPC B64C39/005 (36) · CPC B64C39/08 (25) · CPC B64C39/008 (17) · CPC B64C39/003 (8) · CPC B64C39/006 (7) · CPC B64C39/06 (3) · CPC B64C39/062 (3) · CPC Y10S244/903 (2) · CPC B64C3/56 (2) · CPC B64C3/54 (2) · CPC B64C3/385 (2) · CPC B64C2700/6246 (2)
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Citations from after 1930:
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