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1 янв 1870 г. - Quadruplex telegraph

Описание:

Thomas Edison invents the quadruplex telegraph after becoming a well-known inventor. The quadruplex telegraph could transmit to signals in two different directions on the same wire.

Добавлено на ленту времени:

Thomas Edison

ByEmma
14 ноя 2017

Дата:

1 янв 1870 г.
Сейчас
~ 154 г назад
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