All Patents in class 241/73


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All Patents in class 241/73
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	424,602	Apr. 01, 1890	E.C. Engelberg	Rice-hulling machine
	512,304	Jan. 09, 1894	C.E. Lipe	Hulling-machine
	2,279,219	Apr. 07, 1942	L.R. Baker, A.D. Baker	Material Grinding Machine
	4,934,614	Jun. 19, 1990	H.H. Lewis	Rotary grinding apparatus with secondary grinding chamber section