All Patents in class 137/601.13


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All Patents in class 137/601.13
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	1,850,690	Mar. 22, 1932	S.B. Redfield	Retaining device for plate valves
	2,461,328	Feb. 08, 1949	W.S. Landon	Controlling Means and System
	2,843,148	Jul. 15, 1958	A.W. Rymills	Soft closing nozzle valve
	3,610,274	Oct. 05, 1971	A. Hirt, G.N. Levesque	Fluid Logic Circuit