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All Patents in class 222/287
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	1,364,869	Jan. 11, 1921	E.R. Draver	Liquid-feed regulator
	1,369,968	Mar. 01, 1921	E.R. Draver	Feed-regulator
	1,504,543	Aug. 12, 1924	E.R. Draver	Feeding agitator
	1,510,439	Sep. 30, 1924	E.R. Draver	Transmission mechanism for feeders connected in a gang
	2,305,128	Dec. 15, 1942	L.J. Andresen, W.E. Gerbing	Variable speed feed mechanism

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