Data processing equipment and computers, computer software, especially programmes for design and planning of installations for lighting, air conditioning, ventilating and heating; regulating and control devices and equipment for lighting installations and lights, ballasts and starters for glow-discharge lamps, electronic transformers, connectors and plug connections for fibre optic cables, optical fibre light cables of glass or plastic fibres, lenses for focusing light

Ventilating installations, devices and equipment, devices for directing and guiding air, ventialtion grilles for directing air, rollers for directing air, air conditioning installations, devices and equipment