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(en)
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Two wire heater regulator control circuit having continuous temperature sensing excitation independent of the application of heater voltage
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Electrical heater control system
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음극 방식 시스템
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Cell balance detector for electrolytic cell assemblies
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Automatic control system for oil well heater
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Protection circuit for electrical discharge machining power supply
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Rate-of-rise temperature responsive system
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Battery charger
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Electrical apparatus for minimizing polarization of conductivity cell electrodes
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Proportional and integrating temperature controller
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Temperature detecting device
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Circuit arrangement and method for stabilising the current distribution in parallel-connected electronic regulators
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Устройство управления наружным освещением
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(en)
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Device for regulating the temperature of a heating wire with few emitted disturbances
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Стабилизатор дл градуировки электроизмерительных приборов
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Стабилизатор посто нного напр жени
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Стабилизатор напр жени посто нного тока
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GB1189009A
(en)
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Filament Protection for Hot Wire Detectors
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