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All Patents in class 285/39
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
49,142	Aug. 01, 1865	J. Old	Pipe Coupling	pipe wrenches
395,877	Jan. 08, 1889	C. Callahan	Hose Coupling	auxiliary wrenches
487,829	Dec. 13, 1892	W.R. England	Pipe-Coupling	auxiliary wrenches

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