All Patents in class 427/292


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All Patents in class 427/292
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	108,940	Nov. 01, 1870	J. Rogers	Improvement in finishing the surfaces of plated goods
	2,231,233	Feb. 11, 1941	H. Vienhaus	Process of finishing materials