November 29, 1887 - Granville T. Woods of Cincinnati, Ohio
was granted patent number 373,915 for the synchronous multiplex railway
telegraph. His invention allowed communication between train stations from
moving trains. Woods was born April 23, 1856 in Columbus, Ohio and dedicated
his life to developing a variety of improvements related to the railroad
industry and controlling the flow of electricity. In addition to the
synchronous multiplex railway telegraph, Woods received approximately 60 other
patents and was known to many people of his time as the “Black Thomas Edison.”
Woods died January 30, 1910. The Granville T. Woods Math and Science Community
Academy in Chicago, Illinois is named in his honor.
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