Telecommunications, data communications, microwave communications, aeronautical communications, maritime communications, and electronic communications installations, apparatus, instruments and circuits; radio, television, cable, satellite, electrical or electronic control, testing, monitoring, optical, electro-optical, signalling, measuring, checking (supervision) and teaching installations, apparatus and instruments; apparatus for recording, transmission, reception, processing or reproduction of sound, images and/or data; cables, ducts and conductors, all for electrical, electronic, radio frequency, telecommunications or optical signal transmission; waveguides being electronic or telecommunications components; electronic apparatus and instruments, all for processing, logging, storing, transmission, reception, display and/or printout of data; computers; electronic apparatus and instruments, all for management and/or performance analysis of telecommunications and data communications networks and circuits; electronic circuits and components, all for processing, coding and decoding electronic, radio frequency and optical signals and/or data; encoding and decoding apparatus and instruments; analogue to digital and digital to analogue converters; alarm, intruder detection, security and surveillance apparatus and instruments; electronic message boards and electronic information display boards; apparatus and instruments, all for transmitting, displaying, receiving, storing and searching electronic information; microprocessors; speech processors; speech recognisers and synthesizers; language translating apparatus, instruments and circuits; attenuators; signal converters; amplifiers; electrical and electronic switching apparatus and circuits; electronic plug-in cards, videotex apparatus and instruments; electronic interfaces; answering machines; vehicle tracking, indentification and location apparatus and instruments; calculating apparatus and instruments; discs, tapes, cards and wires, all being electronic, magnetic, electro-magnetic, optical and/or electro-optical data carriers; computer and electronic software; encoded programs for computers and for data processing and telecommunications apparatus; keyboards, printers and controllers; data terminals; diagnostic apparatus and instruments, all being electronic; weather information apparatus and instruments; navigational apparatus and instruments; electronic financial transaction and electronic trading apparatus and instruments; remote access on-line information apparatus and instruments; all being electronic; audio-visual apparatus and instruments; video conferencing and teleconferencing apparatus and instruments; visual display apparatus and instruments; electronic apparatus and instruments, all for interrogating answering machines and/or accessing telephone services; electrical and electronic apparatus, instruments, circuits and components, all for use with computers, data processing apparatus and/or with communications networks; electronic scanning apparatus and instruments; electronic memories; electronic circuit boards; databases recorded on electronic, magnetic, electro-magnetic, optical or electro-optical media; parts and fittings for all the aforesaid goods