Drilldown: Patents

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

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None (265) · London (3) · TX (2) · Seine-et-Oise (2) · Seine (2) · New York county (2) · New York City (2) · Bexar county (2) · California (2)
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None (226) · Patent FR-1908-392672 (3) · Patent BE-1912-02-07-Gramaticesco (3) · Patent FR-1912-449167 (3) · Patent CA-1910-131159 (2) · Patent DE-1909-244106 (2) · Patent US-1912-1077892 (2) · Patent US-1912-1062545 (2) · Patent FR-1908-398707 (2) · Patent FR-1912-457441 (2) · Patent SE-1917-46288 (2)
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None (98) · None (10) · Armengaud jeune (9) · Munn & Co. (5) · J. S. Withers & Spooner (5) · E. Blétry (5) · Victor J. Evans (4) · J. Bonnet-Thirion (4) · Schwab (4) · Georges Faugé (3) · L. Chassevent (3) · Marks & Clerk (3) · Herbert Haddan & Co. (3) · C. A. Snow & Co. (3) · Haseltine, Lake & Co. (3)
National tech categories:
None (106) · FR 6.4 (84) · USPC 244/48 (22) · DE 77h.5 (13) · USPC 244/99.11 (9) · USPC 244/90R (6) · USPC 244/38 (6) · USPC 244/147 (6) · USPC 244/119 (5) · USPC 244/234 (3) · USPC 244/88 (3) · USPC 244/144 (3) · USPC 244/65 (3) · USPC 244/47 (3)
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