Scientific, electric, electronic, measuring, signalling, ch ecking (supervision) and teaching apparatus and instruments; apparatus for the recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; calculating machines and data processing equipment, computer systems and peripherals, visual display units; auxiliary and ancillary equipment for computers; communications apparatus and equipment including computer communication systems; telephonic, telegraphic, telemetric, teleconference and telecommunications units and installations; telephones, radio telephones, telephone systems and telephone apparatus; voice communications systems; services relating to computers and the computer industry including programming and to communications; parts and accessories for the aforementioned goods, and all other goods included in this Class