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Patents > Tech fields: airplane & IPCs : IPC B64B1/00 or IPC B64C25/00 or IPC B64C33/00 or IPC B64C39/00

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Supplementary to patent:
None (182) · Patent FR-1916-502839 (4) · Patent IT-1915-150227 (3) · Patent FR-1909-420322 (3) · Patent US-1910-996592 (3) · Patent FR-1908-396470 (2) · Patent FR-1917-502839.21604 (2) · Patent IT-1917-03-16 Federico Caproni (2) · Patent NZ-1909-26981 (2) · Patent FR-1908-397350 (2) · Patent FR-1909-395148 (2) · Patent FR-1915-502433 (2) · Patent FR-1911-419438 (2) · Patent FR-1909-421311 (2) · Patent FR-1910-414004 (2)
Related to aircraft:
Patent agent:
None (49) · Armengaud jeune (24) · None (16) · J. Bonnet-Thirion (12) · Weismann et Marx (9) · Charles Dony (9) · Marks & Clerk (8) · Boramé et Julien (7) · Lavoix et Mosès (6) · Hippolyte Josse (6) · Dupont et Elluin (6) · Boult, Wade & Tennant (6) · L. Chassevent (5) · J. Germain (5) · G. de Mestral et F. Harlé (5) · E. Blétry (5) · Brandon frères (4) · Société A. Frey et de Carsalade (4) · Gaston Rose (4) · G. Petiau (4)
National tech categories:
FR 6.4 (196) · None (52) · USPC 244/25 (4) · USPC 244/22 (4) · USPC 244/13 (4) · USPC 244/45R (3) · USPC 244/30 (3) · DE 77h.5 (3) · FR 6.3 (3) · USPC 244/102R (2) · USPC 244/9 (2) · USPC 244/46 (2) · USPC 244/11 (2) · USPC 244/104CS (2) · USPC 244/19 (2) · USPC 244/100R (2) · DE 77h.9 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (149) · CPC B64C2700/6295 (103) · CPC B64C25/06 (35) · CPC B64F2700/6226 (27) · CPC B64B1/00 (26) · CPC B64C25/62 (21) · CPC B64C39/08 (18) · CPC B64C25/64 (17) · CPC B64C39/005 (14) · CPC B64C25/52 (11) · CPC B64C33/00 (10) · CPC B64C25/54 (9) · CPC B64C39/003 (6) · CPC B64C39/008 (6) · CPC B64C25/60 (4) · CPC B64C33/02 (4)
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Citations from after 1930:
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