All Patents in class 92/13.5


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All Patents in class 92/13.5
Patents 1 - 1 of 1
Number	Date	Patentee	Title	Type
2,505,975	May 02, 1950	W.S. Landon, deceased (Estate of), M.E. Landon, Administratrix	Reciprocating Travel Controlling Means	gas and liquid valves