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All Patents in class 56/306
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	79,537	Jul. 07, 1868	T. Alsop	Mill Gearing
	263,159	Aug. 22, 1882	A.O. Frick	Traction Engine
	459,325	Sep. 08, 1891	B.D. Whitney	Feed-roller

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