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Patents for William S. Duvall
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
310,908	Jan. 20, 1885	J.P. Herron, E. Morrison	Thickness Gage	thickness gages
478,121	Jul. 05, 1892	W.S. Duvall, W. Miller	Wrench	pipe wrenches
484,307	Oct. 11, 1892	W.S. Duvall, C.C. Fields	Wrench	quick adjust wrenches

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