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An NEC pager branded by Deutsche Telekom for the Skyper pager service Original Motorola "Pageboy II" pager, used in New York in the late 1970s. The first telephone pager system was patented in 1949 by Alfred J. Gross. One of the first practical paging services was launched in 1950 for physicians in the New York City area.
Al Gross (engineer) Irving " Al " Gross ( / ɡroʊs /; February 22, 1918 – December 21, 2000) was a pioneer in mobile wireless communication. He created and patented many communications devices, specifically in relation to an early version of the walkie-talkie, [1] Citizens' Band radio, [2] the telephone pager [2] and the cordless telephone. [3]
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 1869.
Johann Philipp Reis. Johann Philipp Reis ( German: [ʁaɪs]; 7 January 1834 – 14 January 1874) was a self-taught German scientist and inventor. In 1861, he constructed the first make-and-break telephone, today called the Reis telephone. It was the first device to transmit a voice via electronic signals and for that the first modern telephone.
The word vourdalak occurs first in Pushkin's work in the early 19th century, and was taken up in Russian literary language following Pushkin. It is a distortion of words referring to vampires (originally probably to werewolves ) in Slavic and Balkan folklore – cf. Slavic vǎlkolak, volkodlak, volkolak, vukodlak, wurdulak , etc.; Romanian ...
Reis telephone. The Reis telephone was an invention named after Philipp Reis of a telephone -like device he constructed. Reis's first successful work is dated to October 1861. It was the first device to transmit a voice via electronic signals and for that the first modern telephone. [1] [2] Reis also coined the term.
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 and replaced by a system of competitors.
1931: The Ericsson DBH 1001 telephone was the first telephone without a separate ringer box. 25 April 1935: First telephone call around the world by wire and radio. 1937: The Western Electric type 302 telephone becomes available for service in the United States. 8 December 1937: Opening of fourth transcontinental telephone line.