Patents for John H. Roberts


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Patents for John H. Roberts
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	36,953	Nov. 18, 1862	W. Harris	Tire-rolling machine
	165,757	Jul. 20, 1875	J.H. Roberts	Improvement in scroll-sawing machines
	397,976	Feb. 19, 1889	R.R. Doan	Road Engine