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6 abr 1809 año - Постройка и испытание электрохимического телеграфа

Descripción:

в 1809 году немецкий учёный Самуил Томас Земмеринг построил и испытал электрохимический телеграф

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Развитие сетей

ByГеоргий
9 dic 2018
0
0
368

fecha:

6 abr 1809 año
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~ 216 years ago
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