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Closure means for unoccupied circuit breaker opening in a panel board
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Circuit breakers
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Interlock for multi-pole circuit breakers
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Toggle common trip interlock for multipole circuit breakers
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Common trip interlock
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Multi-pole circuit breaker interlock
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Circuit breaker having transversely movable operating elements
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Circuit breaker having cam controlled contact bar
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Multipole circuit breaker
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Panel board and circuit breaker combination
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Circuit breaker
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Bi-directionally releasable circuit breaker
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Counter-directionally releasable circuit breaker
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Circuit breaker
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Circuit breaker
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Circuit breaker with improved electromagnetic tripping device
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Circuit breaker
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Circuit breaker
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Locking plate for circuit breakers, switches and the like
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US2677734A
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Electric circuit breaker
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