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All Patents in class D18/57
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	D155,539	Oct. 11, 1949	M.H. Preis, J.A. Hoffman	Design for an engraving machine
	2,688,275	Sep. 07, 1954	L.C. Hammond, D.E. Sutton	Printing plate shaving machine

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