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Patents > CPCs : CPC B64C11/343 or CPC B64C17/00 & Citations from after 1930: None

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None (547) · Seine (8) · Loire (6) · Paris (5) · New York City (3) · La Ricamarie (3) · TX (3) · San Antonio (3) · Bexar county (3) · Nord (3) · Michigan (2) · England (2) · New York county (2) · Nancy (2) · Nièvre (2) · Meurthe-et-Moselle (2) · Maine-et-Loire (2) · Orne (2)
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None (421) · Patent FR-1908-396249 (4) · Patent US-1908-1077750 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1909-399456 (3) · Patent GB-1909-8531‎ (3) · Patent IT-1910-10-17 Carlo Navaro (3)
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Patent agent:
None (259) · Armengaud jeune (27) · None (22) · Marks & Clerk (12) · E. Blétry (9) · Charles Dony (8) · J. Bonnet-Thirion (7) · Victor J. Evans (7) · P. Follin (7) · Brandon freres (7) · Schwab (6) · Matray frères et Cie (6) · Abel & Imray (6) · Paul Coulomb (5) · J. Germain (5) · Herbert Haddan & Co. (5) · Haseltine, Lake & Co. (5)
National tech categories:
FR 6.4 (264) · None (251) · USPC 244/80 (27) · DE 77h.5 (18) · USPC 244/93 (8) · USPC 244/90R (4) · USPC 244/92 (3) · FR 6.3 (3) · USPC 244/177 (3) · USPC 416/135 (3) · USPC 416/131 (2) · USPC 244/91 (2) · USPC 244/79 (2) · USPC 244/89 (2) · USPC 416/136 (2)
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