Drilldown: Patents

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Patents > Year filed: 1870 - 1879 & Number of figures: 2-4

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Office:
Inventors:
James J. Pennington (2) · James Hartness (2) · Comte Antoine Apraxine (2)
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Applicant person:
None (6) · James J. Pennington (2) · James Hartness (2) · Comte Antoine Apraxine (2)
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National tech categories:
None (23) · DE 77 (3) · USPC 244/3.23 (3) · USPC 244/119 (2) · USPC 244/94 (2) · USPC 244/28 (2) · USPC 244/73R (2)
CPCs:
CPC Y10T403/4677 (4) · CPC B64C27/54 (4) · CPC F16B2/02 (4) · CPC F16B2200/40 (4) · CPC B64B1/00 (4) · CPC B64B1/40 (4) · CPC B64C11/04 (4) · None (3) · CPC Y02E10/74 (3) · CPC B64C11/006 (2) · CPC F03D3/00 (2) · CPC B64C27/322 (2) · CPC F42B10/30 (2) · CPC B64C11/36 (2) · CPC Y02E10/223 (2) · CPC F01D5/06 (2) · CPC B64C1/1407 (2) · CPC B64B1/58 (2) · CPC B64C11/00 (2)
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