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All Patents in class 290/4R
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,838,298Jun. 10, 1958R.M. HendersonIsolation and Engine Speed Limit Controllerdiesel locomotives
2,885,566May 05, 1959R.H. Eisengrein, G.G. Hermanson, C.L. SadlerControl means
2,900,527Aug. 18, 1959E.W. EriksonGenerator control system
3,305,762Feb. 21, 1967C.E. Geib, Jr.Method of control of electric powermotor controls
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