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Patents for Isaac William Sprink
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	909,748	Jan. 12, 1909	I.W. Sprink, F.L. Brown	Automatic Die Head
	909,749	Jan. 12, 1909	F.L. Brown, I.W. Sprink	Adjustable Collapsing Tap

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