All Patents in class 137/628


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

All Patents in class 137/628
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	113,517	Apr. 11, 1871	B. Holly	Safety Valve
	2,151,658	Mar. 21, 1939	B.E. Folke	Injector
	2,360,695	Oct. 17, 1944	R.H. McClellan, C.E. Linden	Hydraulic gear shifting and driving system
	2,612,184	Sep. 30, 1952	W.I. Evans	Sensitive Hydraulic Tracer Valve