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Patents for Robt. H. Porter
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	259,895	Jun. 20, 1882	C.H. Miller	Pipe Tongs
	260,771	Jul. 11, 1882	C.H. Miller	Monkey Wrench
	273,874	Mar. 13, 1883	C.H. Miller	Attachment for Pipe Tongs or Wrenches
	348,743	Sep. 07, 1886	J.A. Hurley	Cork Puller

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