GB2086136A
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Improvements in and relating to earth leakage circuit breakers
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GB1585826A
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Circuit breakers
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GB1545600A
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Circuit breakers
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GB1271373A
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Current leakage circuit breaker device
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GB1204918A
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Electric switches
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GB1145857A
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Improvements in or relating to electrical circuit breakers
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GB1098378A
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Push-button reed switches
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GB1057058A
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Electrical contactor
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GB1020786A
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Improvements in and relating to electric pulse apparatus
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GB998627A
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Improvements in or relating to electric relays
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GB973814A
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Electrical control device
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GB939603A
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Improvements in or relating to electromagnet relays
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