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All Patents in class 251/50
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	1,087,906	Feb. 17, 1914	C.R. Houghton	Relief-valve
	1,795,310	Mar. 10, 1931	W.E. Mathews	Compressor Unloader
	2,108,979	Feb. 22, 1938	D.D. Wile	Valve
	2,843,148	Jul. 15, 1958	A.W. Rymills	Soft closing nozzle valve
	2,903,234	Sep. 08, 1959	H. Steinhauer, V.v. Sundt	Timed Valve with Cam Actuator

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