Drilldown: Patents

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Patents > Year granted: 1880 - 1889 & Office: US & Number of claims: 3-4

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None (15) · USPC 244/30 (4) · USPC 244/97 (2) · USPC 244/153R (2)
CPCs:
CPC B64B1/00 (4) · CPC F16B2/02 (2) · CPC F16B2200/40 (2) · CPC E05G1/024 (2) · CPC B64C27/54 (2) · CPC B64C11/006 (2) · CPC Y02E10/72 (2) · CPC B64C11/04 (2) · CPC A63H27/08 (2) · CPC Y10T403/4677 (2)
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Showing below up to 34 results in range #1 to #34.

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