Patents for John D. Walworth


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Patents for John D. Walworth
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
397,954	Feb. 19, 1889	G. Pendleton, Jr., W.C. Worthen	Wrench	pipe wrenches
400,380	Mar. 26, 1889	G. Pendleton, Jr., W.C. Worthen	Improvement in Pipe Wrenches	pipe wrenches