All Patents in class 409/311


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All Patents in class 409/311
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	136,204	Feb. 25, 1873	H. Barth	Machines for Planing Stereotype Plates
	511,277	Dec. 19, 1893	C.R. Schilling, C. Schraubstadter, Jr.	Block Shaving Machine
	609,643	Aug. 23, 1898	F. Wesel	Machine for shaving electrotypes, stereotypes, &c.