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Cooper is the lead inventor named on "radio telephone system" filed on October 17, 1973, with the U.S. Patent Office and later issued as U.S. Patent 3,906,166. [20] John Francis Mitchell , Motorola's Chief of Portable Communication Products (and Cooper's Manager and Mentor) and the engineers who worked for Cooper and Mitchell are also named on ...
Martin Cooper, a former general manager for the systems division at Motorola, led a team that produced the DynaTAC 8000X, the first commercially available cellular phone small enough to be easily carried, and made the first phone call from it. Martin Cooper was the first person to make an analog cellular mobile phone call on a prototype in 1973.
The first handheld mobile phone was demonstrated by Martin Cooper of Motorola in New York City on 3 April 1973, using a handset weighing c. 2 kilograms (4.4 lbs). [2] In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan. [3] In 1983, the DynaTAC 8000x was the first commercially available handheld ...
Martin or Marty Cooper may refer to: Martin Cooper (musicologist) (1910–1986), English music critic and author; Martin Cooper (inventor) (born 1928), designer of the first mobile phone; Marty Cooper (musician) (born 1942), American musician; Martin Cooper (rugby union) (born 1948), England international rugby union player
Martin Cooper photographed in 2007 with his 1972 handheld mobile phone prototype. Prior to 1973, mobile telephony was limited to phones installed in cars and other vehicles. [ 22 ] The first portable cellular phone commercially available for use on a cellular network was developed by E.F. Johnson and Millicom, Inc . [ 29 ]
Mario Ramberg Capecchi (born 1937), together with Sir Martin John Evans (born 1941), and Oliver Smithies (1925–2017), U.S. – Gene targeting Roxey Ann Caplin (1793–1888), UK – Victorian -style corset
Martin Cooper of Motorola, shown here in a 2007 reenactment, made the first publicized handheld mobile phone call on a prototype DynaTAC model on 3 April 1973. (from Mobile phone ) Image 60 Elisha Gray , 1876, designed a telephone using a water microphone in Highland Park, Illinois.
Douglas H. Ring (March 28, 1907 in Montana – September 8, 2000 in Red Bank, New Jersey) was one of the Bell Labs engineers that invented the cell phone.The history of cellular phone technology began on December 11, 1947 with an internal memo written by Douglas H. Ring in which he proposed development of a cellular telephone system by AT&T. [1]