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Activation for switching apparatus
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Current breaking device with solid-state switch and built-in protective circuit breaker
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一种新型空气开关
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Improvements in and relating to automatic electric circuit breakers
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回路しや断器
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Automatic electric circuit breakers
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누전 및 배선차단기를 위한 순시트립장치
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Overload protection for electric motors
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Electric circuit breaker with auxiliary switch means
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An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same
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Electric switch
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