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1 янв 1840 г. - Karl August Steinheil tratan de usar rieles para la transmisión de señales. El gran problema fue el aislamiento.

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HISTORIA DE REDES 1

ByJHON FREDY PARADA HERNANDEZ
31 мар 2019
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Дата:

1 янв 1840 г.
Сейчас
~ 184 г назад
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