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Patents for Elmer P. Howe
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	257,530	May 09, 1882	B.F. Sturtevant	Steam Slide Valve
	335,259	Feb. 02, 1886	B.H. Warren	Horseshoe-calk
	336,863	Feb. 23, 1886	W.S. McGowan, Jr.	Horseshoe

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