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All Patents in class 74/570.1
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	17,222	May 05, 1857	M. Kaefer	Fly Wheel
	41,403	Jan. 26, 1864	N.C. Stiles	Improved Punching-Press
	102,924	May 10, 1870	E. Doty	Improvement in machines for punching metal
	1,258,020	Mar. 05, 1918	W. Klocke	Adjustable-stroke press
	2,216,308	Oct. 01, 1940	E.C. Ballman	Method and Means for Balancing Grinding Wheels

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