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  • ...Edison's earliest inventions were related to telegraphy, including a stock ticker. His first patent was for the electric vote recorder, {{US patent|90646}}, ...y. This allowed him to make his early fortune with the [[ticker tape|stock ticker]], the first electricity-based broadcast system. On August 9, 1892, Edison
    105 KB (15,290 words) - 17:19, 16 December 2018