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All Patents in class 137/456
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,946,882Feb. 13, 1934P.S. RusselValveindustrial valves
2,404,853Jul. 30, 1946W.S. LandonFluid Control for Oil Burnersflow controls
2,592,913Apr. 15, 1952M.E. Landon, Administratrix, W.S. Landon, deceased (Estate of)Liquid Level Control Meansliquid level controls
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