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1988-04-05 |
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Voltage surge limiter with grounding assembly
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2018-03-16 |
Abb Schweiz Ag |
Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line
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2021-02-24 |
SALTEK s.r.o. |
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2024-08-27 |
2026-01-28 |
Saltek S.R.O. |
Omezovač napětí s integrovaným zkratovacím zařízením a se zařízením pro monitorování funkčního stavu
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