Drilldown: Patents

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Patents > Office: US & Filing date: 1870 - 1879 & Citations from after 1930: None

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None (6) · USPC 416/139 (3) · USPC 244/28 (2) · USPC 416/112 (2) · USPC 244/51 (2) · USPC 416/121 (2)
CPCs:
CPC F03D11/00 (3) · CPC B64C27/54 (3) · CPC B64C11/346 (3) · CPC B64C11/006 (2) · CPC B64B1/00 (2) · CPC B63H1/04 (2) · CPC Y02E10/223 (2) · CPC B64C9/00 (2) · CPC Y02E10/722 (2) · CPC B64C23/005 (2) · CPC B64C27/322 (2) · CPC B64C2700/6281 (2)
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