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All Patents in class 400/134
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	775,354	Nov. 22, 1904	A.W. Roovers, A.H. Roovers	Die press
	781,620	Jan. 31, 1905	A.H. Roovers, A.W. Roovers	Die press

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