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Patents > CPCs : CPC B64B1/40 or CPC B64C33/02 or CPC G01C 21/18

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Tech fields:
None (155) · LTA (120) · flapping (103) · frame (70) · propulsion (64) · ornithopter (60) · navigation (49) · balloon (48) · Wings (47) · stability (43) · airplane” (39) · Design (32) · propeller (28) · rudder (26) · hybrid (23) · parachute (20) · airship (19) · airfoil (19) · car (17) · safety (16)
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Supplementary to patent:
None (406) · Patent FR-1912-446040 (4) · Patent BE-1910-12-28-Muehter (3) · Patent GB-1909-12556 (3) · Patent FR-1908-407411 (2) · Patent FR-1902-321808 (2) · Patent DE-1910-09-03 Richard Blum (2) · Patent DE-1909-244441 (2) · Patent FR-1909-420004 (2) · Patent IT-1907-87304 (2) · Patent GB-1911-2636 (2) · Patent US-1911-1003530 (2)
Related to aircraft:
Patent agent:
None (268) · None (14) · Munn & Co. (9) · Armengaud jeune (9) · Marks & Clerk (6) · Chassevent (5) · Schwab (5) · Victor J. Evans (4) · E. Bletry (4) · C. Blétry (4) · C. A. Snow & Co. (4) · Hippolyte Josse (4) · Geo. H. Strong (3) · Lavoix et Mosès‎ (3) · Charles Assi (3) · Haseltine, Lake & Co. (3) · Rigot et Prévost (3) · Ad. Sturm (3) · H. C. Everett Co. (3) · A. de Carsalade (3)
National tech categories:
None (146) · FR 6.4 (121) · USPC 244/22 (70) · DE 77 (23) · USPC 244/72 (19) · DE 77h.10 (18) · USPC 244/127 (17) · FR 6.3 (15) · USPC 244/32 (13) · USPC 244/96 (12) · USPC 244/33 (10) · DE 77h (9) · USPC 244/31 (8) · USPC 244/99 (5) · USPC 244/64 (3)
CPCs: (Click arrow to add another value)
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Citations from after 1930:
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