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OCR: 1876 1876 1877 Alexander Graham Bell patents his General George Custer Charles Brush telephone which uses vibrating metal makes "Last Stand T patents carbon plate to transmit electrical signals battle against Sioux arc lamp Charles Brush produces his second hand hevenne Indians built dynamo demonstrates that electric power be put to practical use 1876 Moves to Menlo Park, NI Patents improv rements Invents establishes first laboratory Bell's telephone phonograph for organized industrial Western Union installs Edison's Works on incandescent research quadruplex on telegraph lines, lamp: begins planning Thomas, Edison's second child allowing four messages to be sent complete electric lighting born, nicknamed Dash' simultaneously system 1481 Chevenne Jndians namo could enent