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Patents > Supplementary to patent: None & CPCs : CPC B64C1/00 or CPC B64C17/00

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Tech fields:
stability (297) · None (286) · Airplane (217) · automatic stability (121) · design (64) · control (58) · frame (51) · aerodynamics (42) · wings (41) · equilibrium (38) · construction (27) · fuselage (25) · Rudder (25) · navigation (22) · subsystem (22) · pendulum (21) · balance (20) · lift (17)
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None (316) · None (37) · Armengaud jeune (22) · Victor J. Evans (15) · J. Bonnet-Thirion (10) · Munn & Co. (10) · E. Blétry (9) · Charles Dony (9) · Lavoix et Mosès (8) · Hippolyte Josse (7) · P. Follin (6) · Haseltine, Lake & Co. (5) · L. Chassevent (5) · J. Germain (5)
National tech categories:
None (278) · FR 6.4 (273) · USPC 244/80 (56) · USPC 244/93 (18) · USPC 244/177 (18) · DE 77h.5 (15) · USPC 244/92 (8) · USPC 244/90R (7) · USPC 244/91 (3) · USPC 244/87 (3) · FR 6.3 (3) · USPC 244/139 (3) · USPC 244/100R (2) · USPC 244/89 (2) · USPC 244/119 (2) · USPC 244/113 (2) · USPC 244/233 (2)
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