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Patents > IPCs : IPC B64C1/30 or IPC B64C17/00 or IPC B64C27/04

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Tech fields:
stability (361) · airplane (304) · automatic stability (167) · design (97) · control (88) · None (79) · aerodynamics (67) · equilibrium (55) · frame (52) · wings (52) · helicopter (51) · Subsystem (44) · propellers (38) · construction (36) · pendulum (33) · Lift (32) · Rudder (30) · propulsion (30) · steering (24) · hybrid (23)
Full specification filed date:
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Supplementary to patent:
None (397) · Patent FR-1908-396249 (5) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent GB-1909-8531‎ (3) · Patent FR-1912-442419 (3) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent FR-1910-415470 (3)
Related to aircraft:
Patent agent:
None (124) · None (41) · Armengaud jeune (31) · Marks & Clerk (16) · E. Blétry (15) · J. Germain (14) · J. Bonnet-Thirion (12) · Lavoix et Mosès (12) · Charles Dony (11) · Matray frères et Cie (11) · Schwab (9) · Haseltine, Lake & Co. (9) · Abel & Imray (8) · J. Fayollet (8) · L. Chassevent (8) · Hippolyte Josse (8) · Herbert Haddan & Co. (8) · P. Follin (8) · Brandon frères (8)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (526) · CPC B64C2700/6218 (185) · CPC B64C2700/6212 (119) · CPC B64C2700/6281 (83) · CPC B64C2700/6214 (67) · CPC B64C27/04 (62) · CPC B64C2700/6219 (35) · CPC B64C27/12 (21) · CPC B64C2700/6215 (16) · CPC B64C27/20 (10) · CPC B64C27/52 (6) · CPC B64C1/00 (5) · CPC B64C2700/6211 (5) · CPC B64C29/0025 (4) · CPC B64C1/30 (4) · CPC B64C39/06 (3) · CPC B64C3/48 (3)
First filing:
Citations from after 1930:
Number of diagram pages:

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