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Patents > National tech categories : FR 6.4 or None & Family year: 1911

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Tech fields:
None (320) · Airplane (205) · stability (134) · design (113) · frame (79) · wings (72) · construction (63) · LTA (54) · Automatic stability (53) · aerodynamics (52) · control (45) · propellers (42) · landing (40) · Propulsion (39) · chassis (37) · Fuselage (31) · rudder (28) · Navigation (28) · wheels (28) · Sustentation (27)
Full specification filed date:
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Supplementary to patent:
None (597) · Patent GB-1911-29012 (8) · Patent AT-1911-57225 (4) · Patent FR-1911-434629 (3) · Patent FR-1911-430799 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1912-452017 (3) · Patent FR-1911-446282 (3) · Patent FR-1911-429078 (3) · Patent US-1911-1003530 (3) · Patent BE-1911-05-15 Georges de Bothezat (3) · Patent AU-1911-510 (3) · Patent FR-1911-431428 (3) · Patent BE-1911-04-14 Lucien-Constant-Joseph Harel (3)
Related to aircraft:
Patent agent:
None (348) · None (30) · Armengaud jeune (26) · E. Blétry (17) · Haseltine, Lake & Co. (16) · Dupont et Elluin (15) · Marks & Clerk (15) · Hippolyte Josse (13) · L. Chassevent (13) · J. Bonnet-Thirion (11) · Rigot et Prévost (9) · Weismann et Marx (9) · Brandon frères (9) · H. Boettcher fils (8) · W. P. Thompson & Co. (8) · Boult, Wade & Tennant (8) · Boramé et Julien (8) · Charles Dony (7) · G. de Mestral et F. Harle (7) · Abel & Imray (7)
National tech categories: (Click arrow to add another value)
IPCs:
None (320) · IPC B64C17/00 (106) · IPC B64C1/00 (88) · IPC B64C39/00 (61) · IPC B64C25/00 (24) · IPC B64C3/00 (20) · IPC B64C11/00 (19) · IPC B64C3/38 (19) · IPC B64B1/00 (15) · IPC B64C23/00 (13) · IPC B64C17/06 (13) · IPC B64C35/00 (13) · IPC B64B1/58 (11) · IPC B64C3/56 (10) · IPC B64D17/00 (9) · IPC B64C3/54 (8) · IPC B64D1/04 (6) · IPC B64B1/40 (6)
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