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Patents > National tech categories : FR 6.4 or USPC 102/400 & Number of claims: None

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Tech fields:
airplane (157) · LTA (148) · frame (77) · construction (59) · design (57) · navigation (53) · stability (52) · Propulsion (46) · wings (41) · subsystem (36) · None (33) · lift (30) · control (25) · landing (25) · Aerodynamics (20) · propellers (20) · propeller (19) · steering (19) · chassis (19) · safety (19)
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Supplementary to patent:
None (349) · Patent FR-1909-420322 (6) · Patent FR-1907-373818 (4) · Patent FR-1836-5429 (3) · Patent ES-1906-38692 (3) · Patent BE-1909-219837 (2) · Patent FR-1916-502839 (2) · Patent FR-1911-432053 (2) · Patent FR-1911-419438 (2) · Patent FR-1910-414004 (2) · Patent FR-1908-392672 (2) · Patent FR-1850-10514 (2) · Patent FR-1907-382794 (2)
Related to aircraft:
Patent agent:
None (256) · Armengaud jeune (28) · Weismann et Marx (19) · J. Bonnet-Thirion (13) · Gaston Rose (13) · G. de Mestral et F. Harlé (9) · Brandon frères (8) · Boramé et Julien (7) · Hippolyte Josse (6) · Chassevent (6) · Dupont et Elluin (5) · Ed. Wolf (5) · Weissmann et Marx (5) · None (4) · L. Chassevent (4) · C. Baumann (4) · 0 (4) · Dom. Casalonga (4) · Charles Assi (4) · Société anonyme Astra Ab [FR] (4)
National tech categories: (Click arrow to add another value)
IPCs:
None (91) · IPC B64B1/00 (68) · IPC B64B1/58 (54) · IPC B64C39/00 (26) · IPC B64C17/00 (18) · IPC B64C1/00 (15) · IPC B64C3/00 (15) · IPC B64C23/00 (14) · IPC B64C25/00 (12) · IPC B64B1/40 (12) · IPC B64C11/00 (12) · IPC B64C35/00 (10) · IPC B64C33/00 (9) · IPC B64B1/62 (9) · IPC B64C33/02 (8) · IPC B64C13/00 (6) · IPC B64C27/04 (6) · IPC B64D1/04 (5) · IPC B64C3/56 (5) · IPC B64C3/52 (5)
CPCs:
CPC B64B1/00 (66) · CPC B64B1/58 (53) · None (47) · CPC B64C39/00 (29) · CPC B64C17/00 (24) · CPC B64C2700/6295 (22) · CPC B64C3/00 (16) · CPC B64C23/005 (14) · CPC B64C33/02 (13) · CPC B64B1/40 (12) · CPC B64C2700/6274 (11) · CPC B64C13/00 (10) · CPC B64C35/00 (10) · CPC B64C33/00 (10) · CPC B64C11/006 (9) · CPC B64C25/06 (9) · CPC B64B1/62 (9) · CPC B64C2700/6235 (8)
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