INTERFACES AND PERIPHERAL DEVICES FOR COMPUTERS; JUNCTION SLEEVES FOR ELECTRIC CABLES; FIBRE-OPTIC CABLES; ELECTRICAL PLUGS AND SOCKETS; ELECTRICAL TERMINAL BLOCKS; HOST BUS ADAPTORS AND STRUCTURAL PARTS THEREFOR; ELECTRIC CONNECTIONS AND CONNECTORS; CONNECTIONS FOR ELECTRIC LINES; DATA PROCESSING EQUIPMENT, NAMELY, COUPLERS; COMPUTER CURSOR CONTROL DEVICES, NAMELY, COMPUTER MOUSE; AERIALS; MASTS FOR WIRELESS AERIAL; RADIO RECEIVERS AND TRANSMITTERS; RADIO PAGERS; VACUUM TUBES FOR RADIOS; INTERCOMS; ANTI-INTERFERENCE DEVICES, NAMELY, FILTERS FOR RADIO INTERFERENCE SUPPRESSION; DISTRIBUTION BOXES FOR ELECTRICAL POWER; TRANSPONDERS; ACOUSTIC MEMBRANES; CABINETS FOR LOUDSPEAKERS; AUDIO-RECEIVERS AND VIDEO-RECEIVERS; LOUDSPEAKERS; HORNS FOR LOUDSPEAKERS; MICROPHONES; SOUND TRANSMITTING APPARATUS; ACOUSTIC COUPLING DEVICES; HEADPHONES; ELECTRONIC SECURITY AND SURVEILLANCE DEVICES, NAMELY, ELECTRONIC SECURITY TAGS AND LABELS, ACOUSTIC TAGS, MAGNETIC TAGS; ELECTRIC CABLES, WIRES, CONDUCTORS AND CONNECTION FITTINGS THEREFOR; INSULATED COPPER ELECTRICAL WIRE; TELEPHONE WIRES; COAXIAL CABLES; COAXIAL CABLES INCORPORATING FILTERS; CABLES, ELECTRIC; PRINTED CIRCUIT BOARDS (PCBS); HOLDERS FOR ELECTRIC COILS; ELECTROMAGNETIC COILS; LIGHT EMITTING DIODES (LEDS); ELECTRIC JUNCTION BOXES; ELECTRIC SWITCHES; ELECTRIC LIGHT SWITCHES; ELECTRIC CONTROL PANELS; ELECTRIC COUPLINGS; ELECTRICAL INDUCTORS; CHARGERS FOR ELECTRIC BATTERIES; BATTERY CHARGERS; PHOTOVOLTAIC CELLS; SOLAR BATTERIES; CHOKING COILS FOR USE IN ELECTRICAL APPARATUS; BLANK MAGNETIC DATA CARRIERS; ANTENNA FILTERS; ELECTRIC TRANSFORMERS; ELECTRIC CONVERTERS; VOLTAGE SURGE PROTECTORS; OPTICAL FIBERS; LIGHT CONDUCTING FILAMENTS; COMPUTER NETWORK INTERFACE DEVICES; APPARATUS FOR TRANSMISSION OF COMMUNICATION; VIDEO TRANSMISSION APPARATUS; ELECTRONIC AND OPTICAL COMMUNICATIONS INSTRUMENTS AND COMPONENTS, NAMELY, MULTI-FUNCTION DIGITAL TRANSMITTERS; COMPUTER NETWORK SERVER; MULTI-FREQUENCY COMMUNICATION NETWORK EQUIPMENT, NAMELY, FIREWALLS; COMPUTER WORKSTATIONS COMPRISING OF COMPUTER, MOUSE, KEYBOARD, MONITOR, DESK, KIOSK, RACK, SERVER, DIGITAL STORAGE AND DIGITAL TRANSMITTERS, ELECTRONIC COMMUNICATIONS SYSTEMS COMPRISED OF COMPUTER HARDWARE AND SOFTWARE FOR THE TRANSMISSION OF DATA BETWEEN TWO POINTS; AMPLIFIERS; SOUND EQUALIZERS AND CROSSOVERS