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Patents for Stephen P. Ruggles
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	9,410	Nov. 16, 1852	S.P. Ruggles	Improvement in Printing-Presses
	79,781	Jul. 07, 1868	S.P. Ruggles	Improvement in Rotary Fluid-Elevators

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