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Patents for Joseph W. Calef
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	240,882	May 03, 1881	J.W. Calef	Lead Seal Press
	CA-16,416	Feb. 28, 1883	J.W. Calef	Improvements On Pipe Cutters and Wrenches

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