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1 янв 1980 г. - Se demuestra que la luz puede transportar señales de voz por el aire sin cables.
Добавлено на ленту времени:
Historia Telecomunicaciones Mundo
By
Nilson Reyes Sigua
6 окт 2018
0
0
515
Дата:
1 янв 1980 г.
Сейчас
~ 45 г назад
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