In 1877 Emile Berliner filed a patent for a microphone — the carbon microphone. Alexander Bell, who only a year before had invented the telephone, recognized the practical importance of Berliner's technology. So he bought the patent for $50 thousand — a huge sum at the time.
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In 1877 Emile Berliner filed a patent for a microphone — the carbon microphone. Alexander Bell, who only a year before had invented the telephone, recognized the practical importance of Berliner's technology. So he bought the patent for $50 thousand — a huge sum at the time.
Emile Berliner invented the microphone that became part of the first Bell telephones, and his gramophone was the first record player to use disks.
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