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Alexander Graham Bell's Telephone Patent Drawing, 1876 The master telephone patent, 174465, granted to Bell, March 7, 1876 According to Gray's account, his patent caveat was taken to the US patent office a few hours before Bell's application, shortly after the patent office opened, and remained near the bottom of the in-basket until that afternoon.
The Telephone Cases, 126 U.S. 1 (1888), were a series of U.S. court cases in the 1870s and the 1880s related to the invention of the telephone, which culminated in an 1888 decision of the U.S. Supreme Court that upheld the priority of the patents belonging to Alexander Graham Bell.
The Elisha Gray and Alexander Bell telephone controversy considers the question of whether Bell and Gray invented the telephone independently and, if not, whether Bell stole the invention from Gray. This controversy is narrower than the broader question of who deserves credit for inventing the telephone, for which there are several claimants.
Some recent authors have argued that Gray should be considered the true inventor of the telephone because Alexander Graham Bell allegedly stole the idea of the liquid transmitter from him. [1] Although Gray had been using liquid transmitters in his telephone experiments for more than two years previously , Bell's telephone patent was upheld in ...
Alexander Graham Bell's telephone patent [37] drawing, March 7, 1876 Bell's Prototype Telephone Centennial Issue of 1976 The first successful bi-directional transmission of clear speech by Bell and Watson was made on March 10, 1876, when Bell spoke into the device, "Mr. Watson, come here, I want to see you."
The 1939 film The Story of Alexander Graham Bell was based on his life and works. [233] The 1965 BBC miniseries Alexander Graham Bell starring Alec McCowen and Francesca Annis. The 1992 film The Sound and the Silence was a TV film. Biography aired an episode Alexander Graham Bell: Voice of Invention on August 6, 1996.
The Story of Alexander Graham Bell is a somewhat fictionalized 1939 biographical film of the famous inventor. It was filmed in black-and-white and released by Twentieth Century-Fox . The film stars Don Ameche as Bell and Loretta Young as Mabel, his wife, who contracted scarlet fever at an early age and became deaf.
U.S. patent 0,161,739 – Improvement in Transmitters and Receivers for Electric Telegraphs – Alexander Graham Bell, issued April 6, 1875 U.S. patent 0,166,095 – Electrical Telegraph for Transmitting Musical Tones – Elisha Gray, issued July 27, 1875; Reissue # 8559 Jan. 28, 1879
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