AUTOMATIC AND SEMI-AUTOMATIC TELEPHONE EXCHANGES; TELEPHONE HAND-SETS AND COMMUNICATION TERMINALS; TELEPRINTERS; FACSIMILE TRANCEIVERS; ELECTRICAL AND OPTICAL FIBRE CABLES FOR TELECOMMUNICATIONS AND INDUSTRIAL USE; ELECTRICAL AND OPTICAL (LASER) SIGNAL TRANSMITTERS AND RECEIVERS FOR USE IN TELECOMMUNICATIONS, INCLUDING CABLE-TELEVISION; SATELLITE COMMUNICATICATION GROUND STATIONS AND MARITIME STATIONS; RADIO AND TELEVISION TRANSMITTERS AND RECEIVERS FOR USE IN TELECOMMUNICATIONS, NAVIGATION, PAGING AND FOR USE IN INDUSTRIAL SCIENTIFIC AND DOMESTIC USE; SOUND AND VIDEO RECORDERS; COMPUTERS AND DATA PROCESSORS; WORD-PROCESSORS; KEY BOARDS; VIDEO DISPLAY UNITS; COMPUTER PROGRAMMES RECORDED ON MAGNETIC TAPES, DISCS AND WIRES; HOLOGRAMS RECORDED ON GLASS PLATES AND PLASTICS LAMINATES; SOUND AMPLIFIERS AND LOUDSPEAKERS FOR PUBLIC ADDRESS; OPTICAL FIBRE, AND OPTICAL FIBRE PRE-FORMS; OPTICAL FIBRE CABLE FOR SCIENTIFIC AND MEDICAL USE; ELECTRICAL AND ELECTRONIC STRUCTURAL COMPONENTS, NAMELY CAPACITORS, RESISTORS, THERMISTORS, SEMI-CONDUCTORS, POTENTIOMETERS, RELAYS, RECTIFIERS, INDUCTORS, TRANSISTORS; PIEZO-ELECTRIC CRYSTALS, RESONATORS, FILTERS AND OSCILLATORS; ELECTRONIC INTEGRATED CIRCUITS AND MICROPROCESSORS; PRINTED CIRCUIT BOARDS, AND LAMINATES CONTAINING ELECTRICALLY CONDUCTIVE INTERCONNECTION STRIPS; ELECTRON DISCHARGE TUBES, CATHODE-RAY TUBES, TRAVELLING WAVE TUBES, KLYSTRONS, MAGNETRONS, RECTIFIER TUBES, THYRATRONS AND COLD CATHODE TUBES; ELECTRIC CURRENT AND/OR VOLTAGE REGULATORS, AMPLIFIERS, TRANSFORMERS, CONVERTERS, SWITCHBOARDS AND DISTRIBUTION BOARDS; SMOKE, FIRE AND INTRUDER DETECTORS FOR SECURITY ALARM SYSTEMS AND PARTS THEREOF