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All Patents in class 474/129
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	234,563	Nov. 16, 1880	B.H. Hadley	Belt Shipper
	313,035	Feb. 24, 1885	W.G. Vernon	Belt-shifter
	371,480	Oct. 11, 1887	F.A. Shoemaker	Belt-shifter
	964,051	Jul. 12, 1910	H.A. Perkins	Belt shifter and tightener
	2,499,273	Feb. 28, 1950	M. Leach	Belt shifter

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