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Improvements introduced in the extinguishing boxes of the arcos of the electric switches (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the extinguishing boxes of the arcos of the electric switches (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the extinguishing boxes of the arches of the electrical switches characterized by the fact that the semiconductor material electrodes between which the interruption arc is blown are comb-shaped. (Machine-translation by Google Translate, not legally binding)
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