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Ernst W Siemens patented dynamic coil transducer
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Alexander Graham Bell use speaker in telephone
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Tomas Edison patented phonograph
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Period: to
Audio horns widly used
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Berliner Gramophone Company formed, records pressed
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Columbia began selling disks in the U.S.
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Edison introduced the diamond tipped stylus
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C.W. Rice of General Electric and E.W. Kellogg of AT&T develop the modern speaker and first electric amplification system.
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Chester Rice Edward Kellogg paper published an amplifier design
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Vitaphone sound system for motion pictures developed at Bell Labs.
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MGM makes a standard theater speaker system
Douglas Shearer and John Hilliard at MGM developed a standard theater speaker system -
Paul W. Klipsch filed patent No. 2,310,243
for the corner horn speaker -
Avery Fisher with 9-tube amp and coaxial speaker,
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Return of the Jedi was the first movie exhibited on the THX sound system
Return of the Jedi was the first movie exhibited on the THX sound system designed by George Lucas and Tomlinson Holman; -
Benwin marketed the first DML flat panel loudspeakers