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Patents > IPCs : IPC A63H27/00 or IPC B64C17/00

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Tech fields:
stability (358) · airplane (280) · automatic stability (168) · design (84) · control (82) · aerodynamics (65) · None (64) · Equilibrium (55) · wings (47) · frame (45) · subsystem (43) · pendulum (31) · construction (30) · Rudder (28) · lift (24) · steering (20) · balance (17) · propellers (16)
Full specification filed date:
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Supplementary to patent:
None (329) · Patent FR-1908-396249 (5) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1912-442419 (3) · Patent FR-1910-415470 (3) · Patent GB-1909-8531‎ (3) · Patent DE-1911-11-16 Otto Albin Budig (3)
Related to aircraft:
Patent agent:
None (103) · None (37) · Armengaud jeune (25) · E. Blétry (15) · Marks & Clerk (13) · Charles Dony (11) · J. Bonnet-Thirion (11) · Matray frères et Cie (10) · J. Germain (9) · Haseltine, Lake & Co. (8) · Abel & Imray (8) · Lavoix et Mosès (8) · P. Follin (8) · Herbert Haddan & Co. (7) · Hippolyte Josse (7) · L. Chassevent (7) · Brandon freres (7) · Schwab (7) · Paul Coulomb (6) · J. Fayollet (6)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (526) · CPC B64C2700/6218 (185) · CPC B64C2700/6212 (119) · CPC B64C2700/6214 (67) · CPC B64C2700/6219 (35) · CPC B64C2700/6215 (16) · CPC A63H27/00 (8) · CPC B64C1/00 (5) · CPC B64C2700/6211 (5) · CPC A63H29/18 (4) · CPC B64C3/48 (3) · CPC H03B7/10 (2) · CPC A63H27/14 (2) · CPC B64C3/38 (2)
First filing:
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