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Patents > IPCs : IPC B64B1/58 or IPC B64C17/00 or IPC B64D17/00

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Tech fields:
stability (374) · airplane (307) · LTA (169) · automatic stability (168) · design (99) · control (86) · frame (81) · aerodynamics (69) · None (67) · equilibrium (58) · subsystem (55) · wings (49) · construction (48) · parachute (33) · Rudder (33) · safety (32) · pendulum (31) · navigation (29) · Lift (28) · balloon (26)
Full specification filed date:
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Patent agent:
None (187) · None (44) · Armengaud jeune (32) · Marks & Clerk (22) · E. Blétry (17) · J. Bonnet-Thirion (15) · Lavoix et Mosès (14) · Brandon frères (13) · L. Chassevent (12) · Matray frères et Cie (12) · Charles Dony (11) · Haseltine, Lake & Co. (11) · J. Germain (11) · Schwab (11) · Boramé et Julien (11) · Herbert Haddan & Co. (9) · H. Bœttcher fils (9) · P. Follin (9) · Abel & Imray (9) · Dupont et Elluin (8)
National tech categories:
FR 6.4 (510) · None (194) · DE 77h.5 (12) · USPC 244/80 (11) · FR 6.3 (9) · DE 77h.4 (7) · DE 77 (5) · DE 77h (5) · DE 77h.15 (4) · USPC 244/147 (4) · USPC 244/93 (3) · USPC 244/126 (3) · GB 4 aërostats (2) · FR 11.2 (2) · USPC 244/177 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (526) · CPC B64B1/58 (187) · CPC B64C2700/6218 (185) · CPC B64C2700/6212 (120) · CPC B64C2700/6214 (67) · CPC B64D17/00 (51) · CPC B64C2700/6219 (35) · CPC B64C2700/6215 (16) · CPC B64D2700/62508 (9) · None (6) · CPC B64C2700/6211 (5) · CPC B64C1/00 (5)
First filing:
Citations from after 1930:
Number of diagram pages:

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