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Patents > Applicant firm: None & IPCs : IPC B64C17/00 or IPC B64C3/00 or IPC B64C39/00 & Number of text pages: 3-4

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Tech fields:
airplane (211) · stability (169) · design (90) · automatic stability (69) · None (62) · frame (57) · wings (55) · Construction (51) · control (46) · Aerodynamics (40) · propulsion (31) · subsystem (26) · lift (22) · sustentation (21) · rudder (20) · equilibrium (20) · navigation (19) · propellers (19) · Whole (18) · landing (14)
Full specification filed date:
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Supplementary to patent:
None (267) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1916-502839 (3) · Patent US-1911-1000592 (2) · Patent DE-1910-243485 (2) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent FR-1910-414892 (2) · Patent FR-1908-394418 (2) · Patent FR-1914-476300 (2) · Patent US-1908-989022 (2) · Patent US-1910-993987 (2) · Patent US-1910-999125 (2) · Patent US-1908-1021139 (2) · Patent US-1911-1028409 (2) · Patent FR-1912-442419 (2) · Patent US-1911-1030764 (2) · Patent US-1911-994106 (2) · Patent US-1916-1179978 (2) · Patent FR-1912-450608 (2)
Related to aircraft:
Patent agent:
None (53) · Armengaud jeune (27) · Marks & Clerk (21) · None (20) · Boult, Wade & Tennant (12) · E. Blétry (11) · J. Bonnet-Thirion (10) · Weismann et Marx (9) · Haseltine, Lake & Co. (8) · Lavoix et Mosès (7) · J. Germain (7) · G. Petiau (7) · Herbert Haddan & Co. (7) · Société A. Frey et de Carsalade (6) · Brandon frères (6) · Dom. Casalonga (6) · Hippolyte Josse (5) · J. S. Withers & Spooner (5) · Dupont et Elluin (5)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (193) · CPC B64C39/00 (108) · CPC B64C2700/6295 (104) · CPC B64C2700/6218 (71) · CPC B64C2700/6212 (39) · CPC B64C3/00 (39) · CPC B64C2700/6214 (27) · CPC B64C39/005 (27) · CPC B64C39/08 (20) · CPC B64C2700/6233 (19) · CPC B64C2700/6235 (14) · CPC B64C39/008 (13) · CPC B64C2700/6219 (11) · CPC B64C2700/6215 (6) · CPC B64C39/003 (5) · CPC B64C39/006 (5) · CPC B64C3/385 (5) · CPC B64C3/56 (3)
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Citations from after 1930:
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