A circuit breaker having an instantaneous current overload characteristic
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A mounting tray for circuit breakers
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Improvements in and relating to automatic load control relay
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Improvements in or relating to arc extinguishers for electric circuit breakers
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Improvements in and relating to circuit breaker trip means
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Improvements in or relating to core balance earth leakage protection systems
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Improvements in or relating to latching and trip means for circuit breakers
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Improvements in and relating to tripping control of electric circuit breakers to accommodate transient overloads such as during starting and load changing of electric motors
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Improvements in or relating to multipole electrical cirbuit breakers
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Trip means for circuit breakers and circuit breakers incorporating such trip means
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Improvements in or relating to core balance earth leakage protective systems
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Improvements in or relating to trip means for circuit breakers
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Core balance earth leakage protective systems
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Improvements in or relating to core balance earth leakage protective systems
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Improvements in or relating to core balance earth leakage protective systems
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Improvements in or relating to shunt trip relays
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Improvements in or relating to overload protection for electric motors
