Henry warren biography
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Henry warren biography
Henry E. Warren
American inventor
Henry Ellis Warren (May 21, 1872 – September 21, 1957) was an American inventor, best known as the inventor of the first synchronous electric clock.
He has been called the "father of electric time".[3]
Biography
Warren was born in Boston in 1872 and attended the Allen School. He graduated from the Massachusetts Institute of Technology in 1894 with a Bachelor of Science degree in electrical engineering.[2] He settled in Ashland, Massachusetts, in 1907.[4]
Warren is credited, via a patent awarded in 1918, with invention of the first synchronous electric clock, which kept time from the oscillations of the power grid, as well as with 134 other inventions.[2][3] He founded Warren Telechron Company in 1912 and served as president of the company from 1914 to 1943.[2] Between 1916 and 1926, the company sold 20 million clocks.[2] In 1940, Warren invented the "singing clock", whi