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2 lugl 1875 anni - Графитовая лампа накаливания
Descrizione:
С. А. Козлов получил патент на лампу накаливания с телом накала в виде графитового стерженька, помещённого в стеклянной колбе, наполненной азотом
Aggiunto al nastro di tempo:
Профессия электрик
By
Алина Кутнякова
25 nov 2018
0
0
437
Data:
2 lugl 1875 anni
Adesso
~ 148 years ago
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