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Microphone (2)
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Boudet de Paris, Maurice, 1849- (1)
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Hughes, David Edward, 1829-1900 (1)
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Acoustics: a carbon microphone invented by D.E. Hughes. Wood engraving by Baud after Broux.
Broux.
|
Reference: 47038i
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Des applications de téléphone et du microphone a la physiologie & a la clinique / par le Dr. Boudet de Paris.
Boudet de Paris, Maurice, 1849-
|
Date: 1880
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