All Patents in class 251/293


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All Patents in class 251/293
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	275,042	Apr. 03, 1883	I.W. Heysinger	Suspension Wrench For Gas and Other Cocks
	793,503	Jun. 27, 1905	H.H. Bousser	Wrench
	1,570,700	Jan. 26, 1926	R.N. Murakami	Valve adjuster
	1,807,625	Jun. 02, 1931	H.J. Hjorth	Valve Wrench