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Patents for Thos. S. Sprague
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
97,328	Nov. 30, 1869	H. VanBuskirk	Centerwheel Plow Plane	plow planes
130,879	Aug. 27, 1872	O. Stoddard	Improvement in Compasses	calipers

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