Scientific, nautical, electric, photographic, cinematographic, optical signalling and teaching apparatus and instruments; mobile or fixed radiocommunication equipments; data processing apparatus; electronic modules for exchanging data, sounds, images, still or motion pictures, messages, notably for mobile radiotelephone equipments; apparatus for producing, recording, transmitting, broadcasting, receiving data, sounds, still or motion pictures, messages; telephone and radiotelephone installations, apparatus, transmitters and receivers, notably for mobile, portable or fixed types; answering sets, modems; paging sets; telephone exchanges; paging or radiotelephone repeaters; pylons for wireless telephone; satellites and antennas, notably for broadcasting, transmitting and receiving data, sounds, still or motion pictures, messages; audio-video terminals, multimedia terminals; computers and local area networks; integrated circuits, microprocessors, electrical accumulators, printed boards; magnetic data carriers, recording discs; smartcards and memory cards; smartcard and memory card readers