Patents for Joseph Warren Calef


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Patents for Joseph Warren Calef
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	CA-10,613	Nov. 05, 1879	J.W. Calef, A.D. Cable	Improvements on wrenches
	226,490	Apr. 13, 1880	J.W. Calef	Wrench
	272,526	Feb. 20, 1883	J.W. Calef	Pipe Cutter and Tongs
	273,461	Mar. 06, 1883	J.W. Calef	Improved Self-Adjusting Wrench