Patents for Nathan E. Campbell


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Patents for Nathan E. Campbell
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	156,640	Nov. 10, 1874	W.R. Landfear, N.E. Campbell	Improvement in lathes for turning spools
	170,861	Dec. 07, 1875	W.R. Landfear	Improvement in lathes for turning spools