All Patents in class 251/85


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All Patents in class 251/85
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
2,183,207	Dec. 12, 1939	D.D. Wile	Valve Structure	valves
2,198,070	Apr. 23, 1940	D.D. Wile	Pressure Valve	valves
2,520,386	Aug. 29, 1950	E.J. Dillman	Refrigeration Expansion Valve	refrigeration apparatus