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Patents for Simon Roos
Patents 1 - 4 of 4
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NumberDatePatenteeTitleType
455,683Jul. 07, 1891M. von Dolivo-DobrowolskyTransmission of alternating currents of different phaseelectric distribution systems
456,804Jul. 28, 1891M. von Dolivo-DobrowolskyAlternating-current motorinduction motors
503,038Aug. 08, 1893M. von Dolivo-DobrowolskyRegulation of alternating-current motorsinduction motors
540,153May 28, 1895M. von Dolivo-DobrowolskyApparatus for determining differences between phases of two electric alternating currentselectric meters
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