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Patents > Filing date: 1900 - 1999 & IPCs : IPC B64C1/00 or IPC B64C3/38

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Tech fields:
airplane (321) · stability (299) · automatic stability (125) · Design (112) · None (102) · control (81) · aerodynamics (78) · wings (77) · frame (73) · construction (60) · equilibrium (47) · Subsystem (44) · fuselage (44) · lift (39) · gyroscope (37) · navigation (28) · rudder (27) · sustentation (26) · steering (25) · propellers (20)
Full specification filed date:
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Supplementary to patent:
None (396) · Patent FR-1912-449167 (3) · Patent IT-1913-03-20 Vigilio Baldo (3) · Patent FR-1908-392672 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1908-393976 (3) · Patent BE-1912-02-07-Gramaticesco (3) · Patent FR-1910-435648 (3) · Patent BE-1912-08-13-Panian (3) · Patent GB-1909-8531‎ (3)
Related to aircraft:
Patent agent:
None (120) · None (40) · Armengaud jeune (31) · Haseltine, Lake & Co. (14) · J. Bonnet-Thirion (14) · E. Blétry (12) · Charles Dony (12) · Schwab (11) · Boult, Wade & Tennant (10) · Hippolyte Josse (9) · Dom. Casalonga (8) · Herbert Haddan & Co. (8) · J. Germain (8) · de Bongé (8) · Marks & Clerk (8) · L. Chassevent (7) · Lavoix et Mosès (7) · Abel & Imray (7) · Weismann et Marx (7)
National tech categories:
FR 6.4 (377) · None (203) · DE 77h.5 (23) · USPC 244/48 (6) · USPC 244/90R (5) · USPC 244/119 (4) · FR 6.3 (2) · AT 77d (2) · USPC 244/234 (2) · USPC 244/177 (2) · USPC 244/79 (2) · CH 129b (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (279) · CPC B64C2700/6218 (193) · CPC B64C3/385 (149) · CPC B64C1/00 (82) · CPC B64C17/06 (73) · CPC B64C2700/6216 (52) · CPC B64C2700/6219 (37) · CPC B64C2700/6228 (31) · CPC B64C2001/0063 (29) · CPC B64C3/38 (25) · CPC B64C2001/0081 (15) · CPC B64C2700/6225 (10) · CPC B64C1/061 (9) · CPC B64C17/04 (7) · CPC B64C1/068 (6) · CPC B64C1/06 (6) · CPC B64C2700/6223 (5) · CPC B64C2700/6204 (5) · CPC B64C1/08 (5)
First filing:
Citations from after 1930:
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