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US 203016 Speaking Telephone (carbon button transmitter) by Thomas Edison; US 222390 Carbon Telephone (carbon granules transmitter) by Thomas Edison; US 485311 Telephone (solid back carbon transmitter) by Anthony C. White (Bell engineer) November 1, 1892; US 597062 Calling Device for Telephone Exchange (dial) by A. E. Keith (January 11, 1898)
This timeline of the telephone covers landline, radio, and cellular telephony technologies and provides many important dates in the history of the telephone.. Charles Bourseul Johann Philipp Reis Elisha Gray Thomas Edison Alexander Graham Bell Thomas Augustus Watson Tivadar Puskás Emile Berliner Charles Sumner Tainter Theodore Newton Vail
Thomas Edison invented the carbon microphone which produced a strong telephone signal. The master telephone patent granted to Bell, 174465, March 7, 1876 The modern telephone is the result of the work of many people. [ 10 ]
Edison in 1861. Thomas Edison was born in 1847 in Milan, Ohio, but grew up in Port Huron, Michigan, after the family moved there in 1854. [8] He was the seventh and last child of Samuel Ogden Edison Jr. (1804–1896, born in Marshalltown, Nova Scotia) and Nancy Matthews Elliott (1810–1871, born in Chenango County, New York).
US 203,016—Speaking Telephone (carbon button transmitter)—Thomas Edison US 222,390 — Carbon Telephone (carbon granules transmitter)—Thomas Edison US 485,311 — Telephone (solid back carbon transmitter)—Anthony C. White (Bell engineer) This design was used until 1925 and installed phones were used until the 1940s.
Thomas Augustus Watson (January 18, 1854 – December 13, 1934) was an assistant to Alexander Graham Bell, notably in the invention of the telephone in 1876. Life and work [ edit ]
The Oriental Telephone Company was established on January 25, 1881, as the result of an agreement between Thomas Edison, Alexander Graham Bell, the Oriental Bell Telephone Company of New York and the Anglo-Indian Telephone Company, Ltd.
Edison is credited for contributing to various inventions, including the phonograph, the kinetoscope, the dictaphone, the electric lamp (in particular the incandescent light bulb), and the autographic printer. He also greatly improved the telephone by inventing the carbon microphone. Most of these inventions were not completely original but ...