Construction, installation and servicing of electronic cable, control panels, boxes and circuitry (including computer control systems) for household apparatus for lighting, electrical supply, optical, heat and sound surveillance; teaching apparatus and instruments; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs, data processing equipment and computers; telephonic apparatus; and household apparatus for lighting, heating, cookin...

Electronic cable, control panels, boxes and circuitry (including computer controlled systems) for household apparatus for lighting, electrical supply, optical, heat and sound surveillance; teaching apparatus and instruments; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs, data processing equipment and computers; and telephonic apparatus.