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Patents > IPCs : IPC B64B1/00 or IPC B64C25/00 or IPC B64C39/00 & Number of text pages: 1-2

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Tech fields:
LTA (196) · airplane (121) · Frame (100) · Design (86) · propulsion (75) · balloon (54) · construction (49) · landing (47) · navigation (46) · Stability (45) · wings (37) · Wheels (36) · None (36) · chassis (34) · propellers (34) · airship (32) · hybrid (31) · dirigible (30) · Aerodynamics (28) · Control (27)
Full specification filed date:
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Supplementary to patent:
None (342) · Patent FR-1913-467415 (3) · Patent FR-1909-420322 (3) · Patent FR-1902-317598 (2) · Patent IT-1913- (2) · Patent ES-1906-38692 (2) · Patent FR-1907-382794 (2) · Patent FR-1913-472867 (2) · Patent FR-1913-461629 (2) · Patent CH-1909-48028 (2) · Patent FR-1911-419438 (2) · Patent FR-1908-397350 (2) · Patent FR-1910-414004 (2) · Patent NO-1891-2589 (2)
Related to aircraft:
Patent agent:
None (134) · Armengaud jeune (28) · None (24) · J. Bonnet-Thirion (10) · Marks & Clerk (10) · Hippolyte Josse (9) · E. Blétry (9) · Munn & Co. (8) · Chassevent (8) · Charles Dony (8) · C. Blétry (8) · J. Germain (8) · G. de Mestral et F. Harlé (7) · Boramé et Julien (7) · Lavoix et Mosès (6) · L. Chassevent (6) · Weismann et Marx (5) · Haseltine, Lake & Co. (5) · Herbert Haddan & Co. (5) · Y. Rabilloud et fils (5)
National tech categories:
FR 6.4 (248) · None (71) · FR 6.3 (38) · USPC 244/30 (17) · DE 77h.2 (10) · DE 77 (9) · DE 77h.5 (7) · USPC 244/45R (6) · DE 77h.9 (6) · USPC 244/127 (5) · USPC 244/32 (5) · FR 6.2 (4) · USPC 244/97 (4) · DE 77h.11 (4) · USPC 244/96 (4) · USPC 244/26 (4) · DE 77h (4)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64B1/00 (188) · CPC B64C39/00 (132) · CPC B64C2700/6295 (125) · CPC B64C25/06 (41) · CPC B64F2700/6226 (41) · CPC B64C25/62 (27) · CPC B64C39/005 (18) · CPC B64C25/64 (17) · CPC B64B1/40 (17) · CPC B64C39/08 (16) · CPC B64C25/52 (12) · CPC B64C39/008 (10) · CPC B64C25/54 (9) · CPC B64C39/003 (7) · None (6) · CPC B64B1/58 (6) · CPC B64C39/006 (5) · CPC B64B1/005 (5) · CPC B64C25/50 (4)
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Citations from after 1930:
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