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1920s
1929
- Galvin Manufacturing unveils "Motorola," the first car radio, invented by William Lear.
- RCA purchases Victor Talking Machine Company and becomes RCA Victor.
1928
- The U.S. federal government issues the first experimental TV station permits; General Electric, NBC and BBC begin TV broadcasts within the next year.
- AT&T Corp. sends motion pictures from Chicago to New York, the first successful trial of video delivery through telephone lines.
- Kenjiro Takayanagi demonstrates the cathode ray system in Japan.
1927
- The Federal Radio Commission, the forerunner of the FCC, is established.
- Philo Farnsworth applies for a patent on his electronic television.
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The first coast-to-coast radio hookup is made.
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Bell Telephone Laboratories demonstrates wireless TV between Whippany, N.J. and New York City.
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The first picture phone conversation is held.
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Boris Rtcheouloff applies for a videotape-recording patent.
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John Logie Baird creates the first videodisc.
1926
- Zenith introduces AC radio receivers designed to plug into electrical outlets.
1925
1924
- The Radio Manufacturers Association, the predecessor of the Electronic Industries Association, is founded.
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Radiola, the first commercial home radio, is introduced.
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Loudspeakers replace earphones.
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Western Electric Co. patents its electrical sound recording.
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Zenith Electronics Corp. produces the first portable radio.
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AT&T experiments with a radio car telephone.
1923
- The National Association of Broadcasters (NAB) is formed.
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The first transatlantic radio broadcast is made.
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The complete TV system including kinescope, or picture tube, is demonstrated by Dr. Vladimir K. Zworkin, who then applies for a patent for an iconoscope or the TV camera tube.
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The first radio boombox is introduced. 1922
1920
- Commercial radio broadcasting begins (KDKA, Pittsburgh); the first radio receivers go on sale.
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