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Patents > Year filed: 1912 & Inventor country : DE or FR

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Year filed:
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Inventor country: (Click arrow to add another value)
Applicant is inventor:
Tech fields:
airplane (223) · design (113) · None (111) · stability (97) · frame (85) · construction (66) · Aerodynamics (62) · Propellers (57) · LTA (52) · wings (51) · automatic stability (48) · propulsion (46) · control (39) · landing (38) · subsystem (31) · chassis (31) · navigation (30) · fuselage (29) · lift (26) · sustentation (25)
Application number:
Granted:
Supplementary to patent:
None (399) · Patent ES-1911-50083 (6) · Patent DE-1911-258741 (5) · Patent DE-1911-251309 (4) · Patent FR-1911-443878 (4) · Patent BE-1911-04-14 Lucien-Constant-Joseph Harel (3) · Patent DE-1911-330185 (3) · Patent BE-1911-240352 (3) · Patent BE-1911-11-17 (3) · Patent FR-1911-446282 (3) · Patent FR-1912-446040 (3) · Patent FR-1911-430455 (3) · Patent FR-1911-440594 (3)
Related to aircraft:
Patent agent:
None (259) · Armengaud jeune (41) · None (26) · Charles Dony (18) · Dupont et Elluin (15) · Hippolyte Josse (11) · H. Bœttcher fils (10) · E. Blétry (9) · Haseltine, Lake & Co. (8) · J. Bonnet-Thirion (8) · Marks & Clerk (8) · L. Chassevent (8) · Dom. Casalonga (7) · Weismann et Marx (6) · Émile Bert (6) · Boult, Wade, and Tennant (5) · W. P. Thompson & Co. (5) · Schwab (5) · Société A. Frey et de Carsalade (5) · Boult, Wade & Tennant (5)
National tech categories:
FR 6.4 (307) · None (172) · HU V/h (23) · AT 77d (11) · BE K (9) · FR 6.2 (8) · DE 77h.5 (6) · FR 5.3 (5) · FR 14.1 (3) · CH 129b (3)
IPCs:
None (203) · IPC B64C17/00 (57) · IPC B64C1/00 (50) · IPC B64C39/00 (34) · IPC B64C35/00 (20) · IPC B64C11/00 (19) · IPC B64C3/00 (19) · IPC B64B1/00 (18) · IPC B64C25/00 (15) · IPC B64C3/38 (14) · IPC B64D17/00 (14) · IPC B64C3/56 (11) · IPC B64B1/58 (10) · IPC B64C13/00 (6) · IPC B64D17/54 (6) · IPC B64D1/04 (5) · IPC B64C33/02 (5) · IPC B64C17/06 (5)
First filing:
Citations from after 1930:
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