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Patents > CPCs : CPC B64B1/40 or CPC B64C2700/6212 or CPC B64C3/56

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None (342) · Nord (5) · England (2) · Allegheny county, Pennsylvania (2) · Loire (2) · Nièvre (2) · Hamilton county, OH (2) · Pittsburgh (2) · PA (2) · Seine (2) · Cincinnati (2)
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None (291) · Patent FR-1908-396249 (5) · Patent DE-1912-03-18 Allgemeine Elektricitäts-Gesellschaft‎‎ (2) · Patent US-1914-1169695 (2) · Patent US-1911-1003530 (2) · Patent US-1908-989022 (2) · Patent GB-1911-2636 (2) · Patent FR-1914-476300‎‎ (2) · Patent FR-1909-402649 (2) · Patent FR-1902-321808 (2) · Patent US-1915-1149680 (2) · Patent BE 1911-04-07 Bollekens frères (2)
Related to aircraft:
Patent agent:
None (157) · Armengaud jeune (10) · E. Blétry (7) · None (7) · Matray frères et Cie (7) · Marks & Clerk (7) · Hippolyte Josse (6) · J. Germain (5) · L. Chassevent (5) · Munn & Co. (5) · Charles Dony (4) · Schwab (4) · P. Follin (4) · 0 (4) · Brewer & Son (3) · W. P. Thompson & Co. (3) · Boramé et Julien (3) · H. C. Evert & Co. (3) · Herbert Haddan & Co. (3) · J. Bonnet-Thirion (3)
National tech categories:
None (137) · FR 6.4 (130) · USPC 244/127 (16) · USPC 244/96 (12) · USPC 244/32 (12) · USPC 244/33 (10) · DE 77 (9) · USPC 244/49 (8) · DE 77h.5 (7) · USPC 244/31 (6) · FR 6.3 (6) · USPC 244/99 (4) · DE 77h (4) · USPC 244/94 (2) · USPC 244/128 (2) · USPC 244/97 (2) · USPC 104/22 (2) · FR 10.4 (2)
CPCs: (Click arrow to add another value)
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