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sep 24, 1877 - Fonografo

Description:

Edison aveva realizzato un ripetitore telegrafico in grado di incidere punti e linee del codice morse su un disco, nasce così il primo Fonografo

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ByFrancesca Previtali
20 Nov 2017
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Date:

sep 24, 1877
Now
~ 148 years ago
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