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19 jul 1874 ano - Освещение ж/д путей

Descrição:

П. Н. Яблочков устроил на паровозе первую в мире установку для освещения железнодорожного пути при помощи электрического прожектора

Adicionado na linha do tempo:

Профессия электрик

ByАлина Кутнякова
25 nov 2018
0
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553

Data:

19 jul 1874 ano
Agora
~ 151 years ago
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