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Patents for Frank B. Murphy
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
381,968May 01, 1888N. TeslaElectro-magnetic motorinduction motors
381,969May 01, 1888N. TeslaElectro-magnetic motorinduction motors
455,067Jun. 30, 1891N. TeslaElectro-magnetic motormultiphase motors
1,151,678Aug. 31, 1915C.E. GeeMechanical movement
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