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Patents for Sylvanus R. Kneeland
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	145,506	Dec. 16, 1873	S.R. Kneeland	Improvement in Screwdrivers
	147,654	Feb. 17, 1874	S.R. Kneeland	Improvement in Screwdriver blades

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