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February 14, 2025Feb. 14, 18762 minutesPlayAlexander Graham Bell and Elisha Gray both file for patents on the telephone...moreShareView all episodesBy Classical KUCOFebruary 14, 2025Feb. 14, 18762 minutesPlayAlexander Graham Bell and Elisha Gray both file for patents on the telephone...more
February 14, 2025Feb. 14, 18762 minutesPlayAlexander Graham Bell and Elisha Gray both file for patents on the telephone...more