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All Patents in class 175/62
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,285,712	Nov. 26, 1918	H.R. Hughes	Horizontal Drilling Machine
	2,349,033	May 16, 1944	N.R. Elliott	Boring Head
	2,707,616	May 03, 1955	R.J. Koch, R.P. Schad	Boring Head for Horizontal Drills in Water Collecting Devices

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