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Patents > Year filed: 1912 & Office : BE or DEG or FR

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Tech fields:
airplane (177) · None (144) · design (92) · stability (74) · frame (57) · construction (51) · LTA (46) · aerodynamics (46) · propulsion (46) · propellers (45) · wings (41) · automatic stability (37) · control (35) · Landing (31) · aeroplane (26) · navigation (26) · Chassis (23) · lift (23) · subsystem (21) · Safety (21)
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Supplementary to patent:
None (418) · Patent FR-1912-446040 (3) · Patent BE-1911-10-26 Charles Pregaldino (2) · Patent IT-1911-Darbesio (2) · Patent FR-1912-457441 (2) · Patent FR-1912-443895 (2) · Patent FR-1911-449265 (2) · Patent FR-1911-448574 (2) · Patent FR-1908-405961 (2) · Patent DE-1912-07-11 Luft Fahrzeug G.m.b.H. (2) · Patent BE-1911-Ernest Gérard (2) · Patent BE-1911-240352 (2) · Patent US-1912-1033662 (2)
Related to aircraft:
Patent agent:
None (234) · Armengaud jeune (41) · None (23) · Charles Dony (18) · Dupont et Elluin (16) · J. Bonnet-Thirion (13) · Hippolyte Josse (12) · L. Chassevent (12) · H. Bœttcher fils (11) · Brandon frères (10) · Schwab (10) · E. Blétry (8) · Dom. Casalonga (8) · Gaston Rose (7) · Société A. Frey et de Carsalade (7) · Émile Bert (6) · Weismann et Marx (6) · G. Petiau (5) · G. de Mestral et F. Harlé (5) · Société J.P. Bonnicart et Cie. (5)
IPCs:
None (169) · IPC B64C17/00 (60) · IPC B64C1/00 (48) · IPC B64C39/00 (34) · IPC B64C35/00 (21) · IPC B64C3/00 (15) · IPC B64C11/00 (15) · IPC B64B1/00 (15) · IPC B64D17/00 (15) · IPC B64C3/38 (14) · IPC B64C25/00 (14) · IPC B64C3/56 (10) · IPC B64B1/58 (9) · IPC B64C23/00 (7) · IPC B64D17/54 (6) · IPC B64D1/04 (5) · IPC CPC B64C13/00 (5) · IPC B64C27/04 (5) · IPC F41G3/24 (5) · IPC B64C3/54 (5)
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