This is 1947 biography movie about how Alexander Graham Bell and his partner Thomas Augustus Watson invented the first discernible speech, transmitted over a telephone.
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Mr. Bell (1947)
Overview
Director
Top Billed Cast
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Raymond Edward Johnson
Alexander Graham Bell
Mason Adams
Thomas Watson
SA
Sara Anderson
Mabel Anderson
Taylor Holmes
Gardiner Hubbard
Jed Prouty
Willis J. Watson