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Patents for Hooven, Owens & Rentschler Co.
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	262,894	Aug. 15, 1882	G.H. Helvey	Traction Engine
	265,499	Oct. 03, 1882	G.H. Helvey	Traction Engine

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