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Patents > Grant date: 1912 & National tech categories : FR 6.4 or USPC 244/45R

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Tech fields:
airplane (181) · stability (90) · design (74) · frame (55) · Wings (51) · automatic stability (42) · construction (41) · aerodynamics (36) · landing (35) · propellers (33) · propulsion (31) · control (30) · chassis (27) · LTA (27) · None (26) · fuselage (25) · Lift (21) · navigation (21) · Sustentation (20)
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Supplementary to patent:
None (267) · Patent FR-1909-420322 (3) · Patent FR-1910-418630 (3) · Patent IT-1911-Darbesio (2) · Patent FR-1908-397350 (2) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent BE-1910-Hervieu-parachute (2) · Patent FR-1911-430799 (2) · Patent FR-1910-435648 (2)
Related to aircraft:
Patent agent:
None (56) · Armengaud jeune (36) · None (33) · L. Chassevent (20) · Charles Dony (14) · Hippolyte Josse (13) · J. Bonnet-Thirion (13) · Dupont et Elluin (12) · H. Bœttcher fils (12) · Schwab (11) · E. Blétry (11) · Weismann et Marx (8) · Société A. Frey et de Carsalade (6) · G. Petiau (6) · Dom. Casalonga (6) · Gaston Rose (6) · Paul Coulomb (5) · Brandon frères (5)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C17/00 (72) · IPC B64C1/00 (54) · IPC B64C39/00 (51) · None (21) · IPC B64C25/00 (19) · IPC B64D17/00 (18) · IPC B64C3/00 (15) · IPC B64C3/38 (15) · IPC B64C23/00 (13) · IPC B64C11/00 (12) · IPC B64C35/00 (12) · IPC B64B1/00 (11) · IPC B64C3/56 (10) · IPC B64B1/58 (8) · IPC F41G3/24 (7) · IPC B64C33/02 (6) · IPC B64D17/54 (6) · IPC B64D1/04 (5)
CPCs:
CPC B64C17/00 (77) · CPC B64C2700/6295 (42) · CPC B64C39/00 (41) · CPC B64C2700/6218 (20) · CPC B64D17/00 (17) · CPC B64C3/385 (16) · CPC B64C3/00 (14) · CPC B64F2700/6226 (14) · CPC B64C2700/6219 (14) · CPC B64C25/06 (13) · CPC B64C2700/6214 (13) · CPC B64C39/08 (12) · CPC B64C23/005 (12) · CPC B64B1/00 (11) · CPC B64C2700/6274 (11) · CPC B64C3/56 (10) · CPC B64C2700/6212 (10) · CPC B64C1/00 (9) · CPC B64C35/00 (9)
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