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Patents for Peter Campbell
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	CA-5,749	Mar. 02, 1876	P. Campbell	Campbell's Self-Adjusting Wrench
	207,500	Aug. 27, 1878	P. Campbell	Combined Wrench and Tool for Locking Nuts in Position Upon Bolts

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