All Patents in class 409/98


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All Patents in class 409/98
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,588,856	Jun. 15, 1926	J.C. Shaw	Contouring tracer
	2,254,229	Sep. 02, 1941	E. Lochman	Electric tracer-control machine for diesinking and the like
	2,335,304	Nov. 30, 1943	F.A. Parsons	Pattern Controlled Copy Machine