All Patents in class 475/4


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All Patents in class 475/4
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,178,702	Apr. 11, 1916	W.A. Barker	Mechanical movement
	2,370,580	Feb. 27, 1945	E.A. Allen, R.S. Pyne	Cross-feed mechanism for grinding machines
	2,561,936	Jul. 24, 1951	E.L. McFerren	Way Grinding Machine