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Patents for Alfred Judson
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,683XFeb. 23, 1827A. JudsonPump for steam boilerpumps
7,755Nov. 05, 1850J. Judson, A. JudsonValve for governorssteam engine governors
RE255Jan. 10, 1854J. Judson, A. JudsonImproved governor-valve for steam-enginessteam engine governors
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