VIERLING

Apparatus, installations and devices of electrotechnical systems, in particular intended for communications/telecommunications technology, namely measuring and control apparatus for telephone communications digital technology and telephone transmission technology; measuring and control apparatus for telephone communications analogue technology and telephone transmission technology; devices intended for digital and analogue telephone communications and telephone transmissions; apparatus for additional extensions; special telephone installations; apparatus for telephone information; accessories for measuring and control apparatus, namely terminal networks, accommodation circuits, accommodation connectors, test adapters, threads for measuring and control apparatus, trolleys for measuring and control apparatus; electric and electronic regulation and control systems