On this day, Granville T. Woods, often called the “Black Edison,” was granted a patent for his improved telephone transmitter. This device enhanced the clarity of telephone audio over long distances by refining how voice signals were carried — an important advancement in communication technology.
Woods would go on to earn over 50 patents, many related to the railroad and electrical industries, including innovations in telegraphy, train safety, and electromechanical systems. His inventions laid critical groundwork for modern electrical and communication systems.
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