Electrical stop timer type ПВ-53Л-Т, Description and operational instructions
Т21 Г-4/69 английский/Electrical stop timer type ПВ-53Л-Т : Description and operational instructions / Energopribor works.Electrical stop timer type ПВ-53Л-Т : Description and operational instructions / Energopribor works.Electrical stop timer type ПВ-53Л-Т : Description and operational instructions.Μ./"Mashgiz"/, 1958 ( ). - "Mashgiz", 1958. - 12 с. : ил. ; 20 см см.Electrical stop timer type ПВ-53Л-Т : Description and operational instructions. Μ., 1958 .Реле -- Время срабатывания -- Определение -- Аппараты и приборы ПВ-53Л-Т/nlr_sh1/Т3-8/"Energopribor", works (Moscow)/