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When he patented one of his telegraph designs in February 1875, he found that Elisha Gray had patented a multiple telegraph two days earlier. Greatly discouraged, Bell consulted in Washington with the elderly Joseph Henry, who urged Bell to pursue his "germ of a great invention" speech transmission (Grosvenor and Wesson 55)...
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By accident on a June day in 1875, an intermittent transmitter produced a steady current and transmitted sound, when Watson tightened or loosened a particular screw it produced a sound that would vary in pitch. Bell had proof of his 1874 idea; he quickly sketched a design for an electric telephone, and Watson built it...
February Russian Revolution Effect of Alexander Graham Bell on Today's Society, with Bibliography Alexander Graham Bell Alexander Graham Bell Alexander Graham Bell Alexander Graham Bell Alexander Graham Bell alexander graham bell Alexander G. Bell Alexander Graham Bell Alexander Ghram Bell Alexander Graham Bell Alexander Graham Bell Elisha Otis Elisha
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