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Patents > Publication date: 1912 & National tech categories : FR 6.4 or USPC 244/6

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Year filed:
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Tech fields:
airplane (174) · stability (92) · design (79) · wings (51) · frame (49) · construction (44) · automatic stability (42) · aerodynamics (35) · control (33) · propellers (32) · landing (31) · propulsion (30) · fuselage (27) · chassis (27) · None (24) · LTA (23) · navigation (22) · lift (21) · sustentation (20) · parachute (18)
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Supplementary to patent:
None (234) · Patent FR-1909-420322 (3) · Patent FR-1910-418630 (3) · Patent FR-1910-429307 (2) · Patent FR-1911-430799 (2) · Patent IT-1911-Darbesio (2) · Patent IT-1911-06-13 Guido Castagneris (2) · Patent FR-1908-397350 (2) · Patent IT-1910-10-17 Carlo Navaro (2)
Related to aircraft:
Patent agent:
Armengaud jeune (36) · None (34) · None (30) · L. Chassevent (24) · J. Bonnet-Thirion (16) · Dupont et Elluin (14) · Hippolyte Josse (14) · Charles Dony (13) · E. Blétry (10) · Schwab (10) · H. Bœttcher fils (10) · Weismann et Marx (9) · Brandon frères (8) · Dom. Casalonga (7) · Société A. Frey et de Carsalade (6) · de Bongé (5) · Gaston Rose (5) · Émile Bert (5)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C17/00 (78) · IPC B64C1/00 (57) · IPC B64C39/00 (52) · IPC B64C25/00 (18) · IPC B64D17/00 (16) · IPC B64C11/00 (13) · IPC B64C23/00 (12) · IPC B64B1/00 (11) · IPC B64C3/38 (10) · IPC B64C3/56 (10) · IPC B64C35/00 (9) · None (9) · IPC B64C3/00 (9) · IPC B64C33/02 (8) · IPC B64D17/54 (6) · IPC B64C17/06 (6) · IPC B64B1/58 (5) · IPC F41G3/24 (5) · IPC B64C11/16 (4)
CPCs:
CPC B64C17/00 (83) · CPC B64C39/00 (45) · CPC B64C2700/6295 (33) · CPC B64C2700/6218 (21) · CPC B64C25/06 (14) · CPC B64D17/00 (14) · CPC B64C2700/6214 (14) · CPC B64F2700/6226 (14) · CPC B64C2700/6219 (13) · CPC B64C2700/6212 (12) · CPC B64C23/005 (11) · CPC B64B1/00 (11) · CPC B64C3/56 (10) · CPC B64C2700/6274 (10) · CPC B64C1/00 (9) · CPC B64C11/006 (9) · CPC B64C3/00 (9) · CPC B64C3/385 (8) · CPC B64C33/02 (8) · CPC B64C17/06 (7)
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Citations from after 1930:
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