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Patents for John S. Woodward
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,227Aug. 21, 1841H. AllenCut-off valve for steam-enginessteam engine valve gear
NS-78Jan. 15, 1862J.S. WoodwardGold separator and amalgamatorore processing apparatus
81,811Sep. 01, 1868W.P. MillerImprovement in sawsinsertable saw teeth
81,812Sep. 01, 1868W.P. MillerImprovement in sawssaw teeth
124,906Mar. 26, 1872W.P. MillerSaw Gaugessaw gauges
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