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Patents for Thos. S. Sprague
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
97,328Nov. 30, 1869H. VanBuskirkCenterwheel Plow Planeplow planes
130,879Aug. 27, 1872O. StoddardImprovement in Compassescalipers
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