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Patents > IPCs : IPC A63H27/00 or IPC B64C1/00 & First filing: Yes

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Tech fields:
stability (162) · airplane (116) · automatic stability (74) · design (41) · None (37) · control (34) · aerodynamics (31) · fuselage (25) · construction (24) · wings (22) · frame (20) · equilibrium (20) · subsystem (18) · Gyroscope (16) · lift (11) · rudder (10) · propellers (9) · sustentation (9) · Chassis (9) · landing (8)
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Supplementary to patent:
None (245) · Patent FR-1913-465942 (2) · Patent FR-1910-435648 (2) · Patent FR-1914-475066 (2)
Related to aircraft:
Patent agent:
None (56) · None (26) · Armengaud jeune (12) · De Bongé (7) · J. Bonnet-Thirion (7) · Boult, Wade & Tennant (7) · Charles Dony (6) · P. Follin (5) · E. Blétry (5) · L. Chassevent (4) · Hippolyte Josse (4) · Herbert Haddan & Co. (4) · Schwab (4)
National tech categories:
FR 6.4 (167) · None (84) · DE 77h.5 (8) · USPC 244/119 (5) · FR 20.1 (2) · FR 6.3 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (164) · CPC B64C2700/6218 (121) · CPC B64C1/00 (56) · CPC B64C17/06 (40) · CPC B64C2700/6216 (25) · CPC B64C2700/6219 (22) · CPC B64C2700/6228 (20) · CPC B64C2001/0063 (17) · CPC B64C2001/0081 (12) · CPC B64C2700/6225 (10) · CPC B64C17/04 (5) · CPC B64C1/06 (5) · CPC A63H27/00 (5) · CPC B64C2700/6204 (4) · CPC B64C1/061 (4) · CPC B64C1/068 (4) · CPC B64C2700/6223 (4) · CPC B64C1/08 (3)
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