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Patents for Ross Valve Co.
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
295,676Mar. 25, 1884G. RossAir-pump
375,200Dec. 20, 1887W. Ross, G. RossWater-engine
384,336Jun. 12, 1888W. Ross, G. RossWater-engine valve
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