发明授权
US3379848A Gas-blast circuit breaker having a movable tubular venting contact and a laterally arranged exhaust vent in the interrupting chamber 失效
气体断路器具有可移动的管状排气接触件和在中断室中的横向布置的排气口

Gas-blast circuit breaker having a movable tubular venting contact and a laterally arranged exhaust vent in the interrupting chamber
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