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All Patents of Type: steam valves
Patents 1 - 12 of 12
First set of recordsLast set of records
NumberDatePatenteeTitleType
114,010Apr. 25, 1871B. HollyVariable Cut Offsteam valves
255,136Mar. 21, 1882B. BrazelleCut-off valvesteam valves
383,225May 22, 1888A.G. HohensteinPressure-regulatorsteam valves
383,226May 22, 1888A.G. HohensteinAutomatic pressure-regulator and safety-valvesteam valves
533,388Jan. 29, 1895H. BolthoffRegister-valvesteam valves
787,422Apr. 18, 1905F.L. WolfeWhistle Valvesteam valves
1,142,054Jun. 08, 1915D.C. PrescottValve-controllersteam valves
1,574,017Feb. 23, 1926D.S. BeattieValvesteam valves
1,772,406Aug. 05, 1930L.E. WhitonValvesteam valves
2,014,541Sep. 17, 1935F.W. WappatPressure regulating valvesteam valves
2,151,647Mar. 21, 1939B. WheelerValve Actuating Mechanismsteam engine valve gear
2,403,427Jul. 02, 1946O.H. LudemanValve Mechanismsteam valves
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