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All Patents in class 251/14
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
FX-6,157Oct. 01, 1830A.B. QuimbyPreventing explosion of steamboat boilerssteam safety valves
873,822Dec. 17, 1907F.L. WolfeWhistle Valvevalves
2,101,712Dec. 07, 1937E.K. JohansenTracer Mechanism for Duplicating Machinesmetalworking machine mechanisms
2,269,395Jan. 06, 1942G.R. True, E.J. DillmanRefrigeration Control Apparatusrefrigeration apparatus
2,297,872Oct. 06, 1942E.J. Dillman, W.E. Cowley, F.Y. CarterControl Apparatusrefrigeration apparatus
2,403,427Jul. 02, 1946O.H. LudemanValve Mechanismsteam valves
2,496,040Jan. 31, 1950W.W. CrileyControl Valve Mechanism for Clutches and Brakeshydraulic valves
2,566,173Aug. 28, 1951E.J. DillmanPilot Operated Valvevalves
2,728,564Dec. 27, 1955R.F. BrackeCarburetor
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