Patents for John H. Roberts


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Patents for John H. Roberts
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
165,757	Jul. 20, 1875	J.H. Roberts	Improvement in scroll-sawing machines	scrollsaws
397,976	Feb. 19, 1889	R.R. Doan	Road Engine	steam road engines