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Patents > IPCs : IPC B64B1/40 or IPC B64C1/00 & First filing : No or Yes

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Tech fields:
stability (293) · airplane (242) · automatic stability (118) · design (93) · aerodynamics (68) · LTA (66) · control (60) · Frame (55) · construction (53) · None (50) · wings (46) · equilibrium (45) · subsystem (38) · gyroscope (38) · fuselage (37) · rudder (28) · lift (27) · navigation (24) · steering (21)
Full specification filed date:
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Supplementary to patent:
None (329) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent IT-1913-03-20 Vigilio Baldo (3) · Patent GB-1909-8531 (3) · Patent FR-1910-435648 (3)
Related to aircraft:
Patent agent:
None (113) · None (30) · Armengaud jeune (27) · J. Bonnet-Thirion (12) · Haseltine, Lake & Co. (11) · Charles Dony (11) · Boult, Wade & Tennant (10) · Lavoix et Mosès (9) · Hippolyte Josse (9) · Schwab (9) · E. Blétry (8) · Marks & Clerk (8) · Herbert Haddan & Co. (7) · J. Germain (7) · De Bongé (7) · J. Fayollet (6) · Dom. Casalonga (6) · Abel & Imray (6) · P. Follin (6) · Paul Coulomb (6)
National tech categories:
FR 6.4 (316) · None (150) · DE 77h.5 (10) · FR 6.3 (9) · USPC 244/119 (6) · USPC 244/127 (6) · DE 77h (4) · USPC 244/96 (3) · USPC 244/79 (2) · USPC 244/177 (2) · USPC 244/33 (2) · DE 77 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (276) · CPC B64C2700/6218 (192) · CPC B64C1/00 (81) · CPC B64C17/06 (73) · CPC B64B1/40 (64) · CPC B64C2700/6216 (52) · CPC B64C2700/6219 (37) · CPC B64C2700/6228 (31) · CPC B64C2001/0063 (28) · CPC B64C2001/0081 (15) · CPC B64C2700/6225 (10) · CPC B64C1/061 (8) · CPC B64C1/068 (6) · CPC B64C1/06 (6) · CPC B64C17/04 (6) · CPC B64C1/08 (5) · CPC B64C2700/6204 (5) · CPC B64C2700/6223 (5) · CPC B64C1/12 (4)
First filing: (Click arrow to add another value)
Citations from after 1930:
Number of diagram pages:

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