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Patents > IPCs : IPC B64C17/00 or IPC B64C33/02 & Number of text pages: 2-4

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None (468) · Seine (17) · Paris (8) · Loire (7) · Rhône (5) · Meurthe-et-Moselle (4) · La Ricamarie (3) · Hérault (3) · New York City (3) · Nièvre (3) · Manche (3) · Nord (3) · Bouches-du-Rhône (3)
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Tech fields:
stability (282) · airplane (223) · automatic stability (129) · design (79) · None (72) · Control (68) · wings (60) · aerodynamics (51) · frame (50) · flapping (49) · equilibrium (39) · ornithopter (34) · subsystem (34) · propulsion (32) · construction (29) · rudder (28) · LTA (23) · navigation (20) · pendulum (19)
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Supplementary to patent:
None (349) · Patent FR-1912-446040 (4) · Patent BE-1910-12-28-Muehter (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1910-415470 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1912-442419 (3)
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Patent agent:
None (98) · None (44) · Armengaud jeune (25) · E. Blétry (16) · Lavoix et Mosès (12) · J. Germain (12) · J. Bonnet-Thirion (11) · P. Follin (9) · Charles Dony (8) · Marks & Clerk (8) · Herbert Haddan & Co. (8) · Hippolyte Josse (7) · Schwab (7) · Rigot et Prévost (7) · Haseltine, Lake & Co. (7)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (392) · CPC B64C33/02 (147) · CPC B64C2700/6218 (139) · CPC B64C2700/6212 (75) · CPC B64C2700/6214 (52) · CPC B64C2700/6219 (32) · CPC B64C2700/6215 (14) · None (6) · CPC B64C1/00 (5) · CPC B64C2700/6211 (4) · CPC B64C33/00 (3) · CPC B64C33/025 (2) · CPC B64C23/005 (2)
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