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Patents for Electro-Dynamic Co.
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
227,622May 18, 1880W.W. GriscomElectro-Magnetic MotorDC motors
227,623May 18, 1880W.W. GriscomElectro-Magnetic MotorDC motors
397,424Feb. 05, 1889H.N. Weidner, W.W. GriscomConnection of Electrical Circuitselectrical connectors
408,232Aug. 06, 1889W.W. GriscomMeans for Propelling Vehicles by Secondary Batterieselectric railroads
408,233Aug. 06, 1889W.W. GriscomVehicle Motorelectric railroads
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