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All Patents in class 417/31
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	213,314	Mar. 18, 1879	G.M. Beard	Windmill-Pump
	2,168,307	Aug. 08, 1939	P.S. Russel, A.G. Hann	Control Device

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