Apparatus for and method of controlling operation of...

Apparatus for controlling and testing an electric installation

Apparatus for controlling armature movements in an electromagnet

Apparatus for identifying the position of an element, in particu

Apparatus for monitoring and controlling liquid level

Apparatus for monitoring machine parts subject to wear

Apparatus to generate magnetism

Apparatus with a single input connectable to electrical energizi

Arrangement for emulating an H-type relay air valve which is uti

Arrangement for separating a control device from an AC mains sup

Asynchronous digital locking system

Automatic by-pass for television components

Automatic electricity control monitoring exit/entry device

Battery powered programmable remote switch controller

Battery powered remote switch controller

Battery supply control unit

Battery-spark and reverse polarity protection method and...

Bi-stable electromagnetic device

Bistable contactor drive circuit

Brake transmission shift interlock and park lock system