Drilldown: Patents

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Patents > Office: US & Family year: 1913 & Number of text pages: 3-5

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None (12) · USPC 244/233 (4) · USPC 244/125 (2) · USPC 244/64 (2) · USPC 244/66 (2) · USPC 244/113 (2) · USPC 244/177 (2) · USPC 244/78.1 (2)
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CPC B64C13/00 (5) · CPC B64C2700/6295 (4) · CPC B64B1/00 (4) · CPC B64C3/385 (3) · CPC B64C23/005 (3) · CPC B64C39/08 (2) · CPC B64C35/00 (2) · CPC B64C33/00 (2) · CPC B64C17/00 (2) · None (2)
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