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1948

Columbia Introduces the “Long Playing” (LP) Record

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1948

Ampex Corporation Introduces Tape Recorders

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1945

Tony Schwartz Buys His First Recorder, Runs on Battery Power

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1944

BBC Begins Using EMI “Midget” Portable Tape Recorder

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1942

Helmut Kruger Makes First Stereo Tape Recordings

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1942

AEG Magnetophon Patents Stereo Recorder in Germany

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1934

BBC Radio Program Lawrence Gilliam's 'Opping 'Oliday Uses Field (Non-Studio) Recording

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1932

W. Bartlett Jones Secures Patent For Stereophonic Recording

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1928

Arthur Allen & Peter Paul Kellogg Record Bird Sounds Using the Movietone

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1922

Major General George Owen Squier Founds Wired Radio Inc.