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Shows Bell's second telephone transmitter , invented 1876 and first displayed at the Centennial Exposition, Philadelphia. This history of the telephone chronicles the development of the electrical telephone, and includes a brief overview of its predecessors. The first telephone patent was granted to Alexander Graham Bell in 1876.
In 1886 it was publicly alleged by Zenas Wilber, a patent examiner, that Bell paid him one hundred dollars, when he allowed Bell to look at Gray's confidential patent filing. [ 76 ] One of the valuable claims in Bell's 1876 U.S. patent 174,465 was claim 4, a method of producing variable electric current in a circuit by varying the resistance in ...
11 February 1876: Elisha Gray invents a liquid transmitter for use with a telephone, but he did not make one. 14 February 1876 about 9:30 am: Gray or his lawyer brings Gray's patent caveat for the telephone to the Washington, D.C. Patent Office (a caveat was a notice of intention to file a patent application.
Matthew Charles Crockett (born March 24, 1984) [1] is an American blues, country, and Americana singer, guitarist, and songwriter. He has released twelve studio albums since 2015, with Lil G.L.'s Blue Bonanza peaking at number 11 on the US Billboard Blues Albums chart [ 2 ] and The Man from Waco breaking into the US Billboard 200.
Texan Charley Crockett's 14th album, "$10 Cowboy," presents him as an artist finally ready for country superstardom.
In 1875, Bell filed a patent application for a primitive fax machine which included drawings of multiple liquid transmitters and the Patent Office granted his application as Patent No. 161739 in April, 1875—ten months before Gray filed his telephone caveat. [16]
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up in 1982 and replaced by a system of competitors.
Alexander Graham Bell's telephone patent [87] drawing, March 7, 1876. Meanwhile, Elisha Gray was also experimenting with acoustic telegraphy and thought of a way to transmit speech using a water transmitter. On February 14, 1876, Gray filed a caveat with the U.S. Patent Office for a telephone design that used a water transmitter. That same ...