Apparatus for disconnecting a switch of a high voltage electric

Apparatus for discriminating between liquid and gaseous flow

Apparatus for equipment unit protection switching

Apparatus for equipment unit protection switching

Apparatus for hitless by-pass switching

Apparatus for illuminating keyboards

Apparatus for indicating closing operable state for air...

Apparatus for indicating cylinder fluid level

Apparatus for indicating the filling level of silos and the like

Apparatus for indicating the position of rotating mechanical ele

Apparatus for locking a circuit breaker

Apparatus for locking a circuit breaker

Apparatus for locking a circuit breaker, and methods for forming

Apparatus for monitoring the flow of fluid media in a pipeline

Apparatus for monitoring the state of an electrical...

Apparatus for mounting a motor operator on a circuit

Apparatus for opening an electrical switch responsive to...

Apparatus for opening an electrical switch responsive to...

Apparatus for permitting quiet manual setting of an appliance ti

Apparatus for phase switching in pumping-up power station