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Patents > Publication date: 1912 & National tech categories : AT 77d or FR 6.4

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Year granted:
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Tech fields:
airplane (184) · stability (90) · design (81) · frame (56) · wings (53) · construction (46) · automatic stability (42) · control (37) · aerodynamics (35) · Landing (34) · propellers (33) · LTA (31) · propulsion (31) · chassis (30) · fuselage (29) · navigation (24) · subsystem (22) · None (22)
Full specification filed date:
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Supplementary to patent:
None (241) · Patent FR-1910-418630 (3) · Patent FR-1909-420322 (3) · Patent FR-1910-429307 (2) · Patent IT-1911-Darbesio (2) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent FR-1911-430799 (2) · Patent FR-1908-397350 (2) · Patent IT-1911-06-13 Guido Castagneris (2)
Related to aircraft:
Patent agent:
None (55) · Armengaud jeune (37) · None (26) · L. Chassevent (24) · J. Bonnet-Thirion (15) · Hippolyte Josse (14) · Charles Dony (13) · Dupont et Elluin (13) · E. Blétry (11) · Schwab (10) · H. Bœttcher fils (9) · Weismann et Marx (9) · Dom. Casalonga (7) · Brandon frères (7) · de Bongé (6) · Émile Bert (5) · Gaston Rose (5) · Societe A. Frey et de Carsalade (5)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C17/00 (73) · IPC B64C1/00 (54) · IPC B64C39/00 (50) · None (26) · IPC B64C25/00 (18) · IPC B64D17/00 (16) · IPC B64C11/00 (14) · IPC B64C23/00 (12) · IPC B64C3/38 (10) · IPC B64C3/56 (10) · IPC B64B1/00 (10) · IPC B64C35/00 (9) · IPC B64C3/00 (9) · IPC B64D17/54 (7) · IPC B64C33/02 (6) · IPC B64C17/06 (6) · IPC F41G3/24 (5) · IPC B64B1/58 (5) · IPC B64C11/16 (4)
CPCs:
CPC B64C17/00 (77) · CPC B64C39/00 (43) · CPC B64C2700/6295 (32) · None (25) · CPC B64C2700/6218 (19) · CPC B64F2700/6226 (14) · CPC B64D17/00 (14) · CPC B64C25/06 (14) · CPC B64C2700/6212 (13) · CPC B64C2700/6214 (12) · CPC B64C23/005 (11) · CPC B64C3/56 (10) · CPC B64C11/006 (10) · CPC B64B1/00 (10) · CPC B64C2700/6219 (10) · CPC B64C2700/6274 (10) · CPC B64C1/00 (9) · CPC B64C3/00 (9) · CPC B64C3/385 (8)
First filing:
Citations from after 1930:
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