Monitoring, electrical control testing, signalling, checking (supervision) and radio-paging apparatus; telecommunications apparatus including radio communications; electronic apparatus and instruments for processing, logging, sorting, input, output, recording, reproduction, transmission or reception of data, sound or images; computers; microprocessors; encoding and decoding apparatus and instruments; magnetic data carriers; recording discs; encoded programs for computers or data processing apparatus; and parts and fittings for all the aforesaid goods