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All Patents in class 409/9
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	909,719	Jan. 12, 1909	R.B. Weaver	Apparatus for Chamfering Gear Teeth
	1,063,160	May 27, 1913	B.M. Hanson	Forming Machine
	1,216,454	Feb. 20, 1917	A.J. Gosselin, A.H. Ingle	Gear Tooth Rounding Machine

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