13 St. 17 Min, 21 Jun 1885 Jahr - Westinghouse invents transformer for alternating current
Beschreibung:
George Westinghouse had over 400 patents to his name | transformer for producing high voltage alternating current | made possible the lighting of cities and operation fo electric streetcars, subways, and electrically powered machinery / appliances
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Datum:
13 St. 17 Min, 21 Jun 1885 Jahr
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~ 140 years ago