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Patents > IPCs: IPC B64C39/00 & Number of text pages: 3-12

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Tech fields:
None (104) · Airplane (80) · design (41) · construction (32) · frame (31) · propulsion (31) · Stability (27) · wings (24) · Propellers (20) · navigation (16) · whole (15) · lift (14) · control (13) · aerodynamics (12) · HTA (11) · sustentation (10) · fuselage (10) · propeller (8) · Hybrid (8)
Full specification filed date:
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Supplementary to patent:
None (171) · Patent FR-1916-502839 (3) · Patent US-1916-1208684 (3) · Patent FR-1908-394418 (2) · Patent US-1911-994106 (2) · Patent US-1910-993987 (2) · Patent US-1913-1133984 (2)
Related to aircraft:
Patent agent:
None (29) · None (15) · Marks & Clerk (12) · Armengaud jeune (11) · Boult, Wade & Tennant (8) · J. Bonnet-Thirion (7) · Weismann et Marx (6) · Brandon frères (6) · Charles Assi (5) · Dupont et Elluin (5) · G. Petiau (4) · H. D. Fitzpatrick & Co. (4) · J. Germain (4) · Lavoix et Mosès (4) · J. S. Withers & Spooner (4) · Borame et Julien (4) · E. Blétry (4)
National tech categories:
FR 6.4 (131) · None (101) · FR 6.3 (8) · USPC 244/45R (8) · USPC 244/13 (5) · USPC 244/19 (3) · FR 6.2 (3) · USPC 244/70 (3) · USPC 244/9 (3) · USPC 244/234 (2) · USPC 244/87 (2) · USPC 244/20 (2) · USPC 244/47 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (153) · CPC B64C2700/6295 (138) · CPC B64C39/005 (39) · CPC B64C39/08 (29) · CPC B64C39/008 (16) · CPC B64C39/003 (11) · CPC B64C39/006 (6) · CPC B64C39/068 (3) · CPC B64C3/42 (3) · CPC B64C3/385 (3)
First filing:
Citations from after 1930:
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