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Patents > Applicant firm: None & IPCs : IPC B64C3/00 or IPC B64C39/00 & Number of text pages: 1-2

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Tech fields:
Airplane (111) · design (77) · Frame (63) · None (53) · wings (51) · Construction (45) · aerodynamics (33) · Propulsion (33) · propellers (25) · lift (23) · Stability (23) · Fuselage (21) · control (20) · monoplane (18) · whole (18) · subsystem (15) · Rudder (13) · LTA (13)
Full specification filed date:
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Supplementary to patent:
None (215) · Patent FR-1907-373818 (4) · Patent FR-1911-429224 (3) · Patent FR-1917-504302 (2) · Patent FR-1908-397350 (2) · Patent FR-1913-461629 (2) · Patent FR-1910-414004 (2) · Patent BE-1911-04-14 Lucien-Constant-Joseph Harel (2)
Related to aircraft:
Patent agent:
None (75) · Armengaud jeune (18) · None (15) · J. Germain (9) · Marks & Clerk (7) · E. Blétry (6) · J. Bonnet-Thirion (6) · L. Chassevent (6) · Y. Rabilloud et fils (5) · Weismann et Marx (5) · Charles Dony (5) · Lavoix et Moses (5) · G. de Mestral et F. Harlé (4)
National tech categories:
FR 6.4 (179) · None (55) · DE 77h.5 (12) · USPC 244/45R (6) · DE 77h.11 (4) · FR 6.3 (3) · USPC 244/70 (3) · DE 77 (3) · DE 77h.7 (3) · USPC 244/46 (3) · USPC 244/13 (3) · USPC 244/903 (2) · USPC 244/48 (2) · USPC 244/27 (2) · USPC 52/84 (2) · FR 5.3 (2) · DE 77h.8 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (129) · CPC B64C2700/6295 (122) · CPC B64C3/00 (90) · CPC B64C2700/6235 (43) · CPC B64C2700/6233 (24) · CPC B64C39/005 (18) · CPC B64C39/08 (16) · CPC B64C39/008 (10) · CPC B64C39/003 (7) · CPC B64C39/006 (5) · None (4) · CPC B64C3/18 (4) · CPC B64C3/385 (3)
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Citations from after 1930:
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