Drilldown: Patents

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Patents > Office: US & Grant date: 1880 - 1889 & Number of claims: 4-7

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None (10) · USPC 244/30 (5) · USPC 416/113 (2) · USPC 244/51 (2) · USPC 89/1.51 (2)
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CPC B64B1/00 (6) · CPC F05B2260/74 (2) · CPC Y02E10/72 (2) · CPC B64C9/00 (2) · CPC B64C27/54 (2) · CPC B64C39/005 (2) · CPC B64C11/006 (2)
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