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Patents for Nathan E. Campbell
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
156,640Nov. 10, 1874W.R. Landfear, N.E. CampbellImprovement in lathes for turning spoolsspool or bobbin machines
170,861Dec. 07, 1875W.R. LandfearImprovement in lathes for turning spoolsspool or bobbin machines
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