Electrotechnical and electronic apparatus, devices and instruments (to the extent included in Class 9); electrical signalling, measuring, recording, monitoring, open and closed loop control and switching devices; electrical data input, processing, transmission, storage and output devices; electronic components; electronic modular assemblies; data processing programs; none of the foregoing being for use by hairdressers or in relation to information on conditioning, waving or treating hair, and none of the foregoing being computer programs for managing data associated with facility maintenance