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24 сент 1877 г. - Fonografo

Описание:

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 ноя 2017

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475

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24 сент 1877 г.

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~ 148 г назад

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