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Patents for Joel M. Dennis
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
141,955Aug. 19, 1873J.H. McNamar, R. ScheidlerPortable Steam-Enginesportable steam engines
164,219Jun. 08, 1875J.H. McNamar, R. ScheidlerThrottle Valvesteam engine valves
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