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All Patents in class 116/67R
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	157,562	Dec. 08, 1874	J.C. Goodrich, J.E. Windle	Improvement in Bit-Gages
	711,398	Oct. 14, 1902	B.M. Hanson	Fluid Operated Stop Valve and Alarm
	995,178	Jun. 13, 1911	W. Potter	Boring-Machine alarm
	1,374,345	Apr. 12, 1921	H.H. Wolfe	Tension means for floor-surfacing machines
	2,338,763	Jan. 11, 1944	E.A. Hall, R.S. Beverlin	Portable Grinding Machine

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