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All Patents of Type: steam valves
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,972XJan. 23, 1834D.B. LeeValves for steam boilerssteam valves
856,569Jun. 11, 1907A.D. CatlinSteam Feed Valvesteam valves
1,772,406Aug. 05, 1930L.E. WhitonValvesteam valves
2,014,541Sep. 17, 1935F.W. WappatPressure regulating valvesteam valves
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