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Patents > IPCs : IPC B64C1/00 or IPC B64C25/36

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Tech fields:
Stability (278) · Airplane (249) · automatic stability (119) · design (90) · aerodynamics (66) · Control (56) · frame (52) · None (49) · construction (49) · wings (48) · Equilibrium (44) · fuselage (38) · subsystem (38) · gyroscope (37) · lift (26) · rudder (23) · steering (18) · sustentation (17) · propellers (16)
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Supplementary to patent:
None (289) · Patent FR-1910-435648 (3) · Patent IT-1913-03-20 Vigilio Baldo (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent GB-1909-8531‎ (3)
Related to aircraft:
Patent agent:
None (92) · None (29) · Armengaud jeune (23) · J. Bonnet-Thirion (11) · Haseltine, Lake & Co. (10) · Charles Dony (10) · Boult, Wade & Tennant (10) · E. Blétry (8) · Schwab (7) · de Bongé (7) · Herbert Haddan & Co. (7) · Hippolyte Josse (7) · J. Germain (7) · Dom. Casalonga (6) · J. Fayollet (6) · Lavoix et Mosès (6) · P. Follin (6) · Abel & Imray (6)
National tech categories:
FR 6.4 (293) · None (142) · DE 77h.5 (14) · USPC 244/119 (5) · USPC 244/79 (2) · FR 6.3 (2) · USPC 244/177 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (280) · CPC B64C2700/6218 (193) · 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 B64C2001/0081 (16) · CPC B64C2700/6225 (10) · CPC B64C1/061 (9) · CPC B64C17/04 (7) · CPC B64C1/06 (6) · CPC B64C1/068 (6) · CPC B64C2700/6223 (5) · CPC B64C2700/6204 (5) · CPC B64C1/08 (5) · CPC B64C1/12 (4) · CPC B64C3/00 (4) · CPC B64C25/36 (4)
First filing:
Citations from after 1930:
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