All Patents in class 318/258


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All Patents in class 318/258
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	1,949,727	Mar. 06, 1934	J.D. Nies	Electric brake for slip-ring motors
	2,235,558	Mar. 18, 1941	M.I. Mathewson, A.L. Krause	Grinding Machine
	2,405,686	Aug. 13, 1946	R.H. Clark	Machine Tool
	2,578,648	Dec. 11, 1951	A.G. Thomas	Electromagnetic Device
	2,737,620	Mar. 06, 1956	C.E. Greene	Motor control circuit