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18 ч 8 мин, 31 дек 1902 г. - Lee De Forest inventa el bulbo o valvula de vacio.

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Inteligencia Artificial

ByJuan L. Lawliet
8 фев 2018
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18 ч 8 мин, 31 дек 1902 г.
Сейчас
~ 121 г назад
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