All Patents in class 409/36


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All Patents in class 409/36
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	579,708	Mar. 30, 1897	E.R. Fellows	Gear-shaping machine
	2,069,323	Feb. 02, 1937	E.W. Miller	Helical Gear Shaping Machine