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All Patents in class 91/25
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
155,933Oct. 13, 1874R. EickemeyerImprovement in steam-enginessteam engines
2,560,449Jul. 10, 1951V.R. Noll, M. KahrFree piston engine
3,232,176Feb. 01, 1966L.A. Wagnon, R.E. Shulters, L. Kramer, J.C. HearningPercussion tool
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