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Patents > CPCs : CPC B64C23/005 or CPC B64C3/385 or CPC B64D17/80

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Tech fields:
None (351) · airplane (198) · frame (82) · propulsion (76) · Stability (71) · navigation (65) · design (56) · hybrid (53) · propeller (52) · helicopter (50) · wings (43) · control (39) · Lift (34) · propellers (31) · construction (30) · aerodynamics (27) · ascension (26) · Rudder (25) · LTA (24)
Full specification filed date:
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Supplementary to patent:
None (596) · Patent FR-1909-410140 (5) · Patent FR-1908-392672 (3) · Patent FR-1912-449167 (3) · Patent US-1912-1062545 (3) · Patent BE-1912-02-07-Gramaticesco (3)
Related to aircraft:
Patent agent:
None (328) · None (20) · Armengaud jeune (13) · Victor J. Evans (11) · Munn & Co. (10) · J. Bonnet-Thirion (9) · Schwab (8) · Marks & Clerk (8) · E. Blétry (7) · G. de Mestral et F. Harlé (6) · J. Germain (6) · J. S. Withers & Spooner (6) · L. Chassevent (5) · Paul Caquet (5) · Matray freres et Cie (4) · C. A. Snow & Co. (4) · Rigot et Prevost (4) · W. P. Thompson & Co. (4) · Charles Dony (4) · Herbert Haddan & Co. (4)
National tech categories:
None (291) · FR 6.4 (190) · USPC 244/6 (49) · USPC 244/48 (30) · USPC 244/66 (20) · USPC 244/12.1 (16) · DE 77h.5 (15) · USPC 244/80 (9) · USPC 244/99.11 (9) · USPC 244/38 (8) · USPC 244/139 (8) · USPC 244/119 (7) · USPC 244/90R (7) · USPC 244/147 (6) · USPC 244/65 (6) · USPC 244/60 (6) · USPC 244/234 (5) · USPC 244/100R (5) · USPC 244/35R (5) · DE 77 (5)
IPCs:
None (384) · IPC B64C23/00 (171) · IPC B64C3/38 (142) · IPC B64C23/005 (9) · IPC B64C3/00 (8) · IPC B64D17/80 (5) · IPC B64C39/00 (4) · IPC B64D25/00 (3) · IPC B64D25/12 (3)
CPCs: (Click arrow to add another value)
First filing:
Cites these patents:
None (724)
Citations from after 1930:
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