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Patents for Gray Brothers
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	12,510	Mar. 13, 1855	J. Hyde	Improvement in Screw-Wrenches
	13,617	Oct. 02, 1855	J. Hyde	Screw-Wrench
	71,871	Dec. 10, 1867	W.M. Gray	Gray's Patent Bed Wrench

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