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All Patents in class 192/85.47
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	928,679	Jul. 20, 1909	A.G. Mather	Variable-speed mechanism
	2,538,997	Jan. 23, 1951	J.N. Weiland	Fluid clutch with pressure booster

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