9 Electric, optical. optoelectric and radio apparatus, as well as components for signal and data transmission via stationary and mobile transmitting and receiving devices in transmission networks or via radio channels, in particular aerials, transmitters, receivers, transceivers, amplifiers, converters, feeds, polarisation switches, modulators, demodulators, decoders, multiswitches, mains apparatus, radio measuring apparatus for radio and television, diversity receivers; crossover networks, filters, distributors for equal and unequal division of radio energy, directional couplers, interface circuits, aerial sockets, equalisers, level regulators, attenuators, adapters, optoelectric and electro-optical converters, repeaters, modems, control equipment, including software (e.g. network managers), audio-video switches; plug, clip and screw type connectors; switching nodes (including operating software) for constructing the infrastructure of signal and data transmission networks, in particular consisting of star couplers, hubs, concentrators, repeaters, bridges, routers, multiplexers, cables, power supply units, fans; mechanical, electric and optical accessories for the aforesaid apparatus, in particular housings, fastening elements, carriers for contact and building elements, contact elements, seals, coverings, screens, cables and conduits, cable bushings, screwed cable glands, flit plugs, telescopic aerials and sliding devices therefor, aerial heads; parts for the aforesaid apparatus and devices, including accessories, and stationary and mobile devices consisting of combinations of the aforesaid apparatus and accessories, and transmission networks and installations, including radio link installations.
37 Servicing and maintenance (after-sales service) of the aforesaid equipment, networks and systems; repairs to the aforesaid equipment.
42 Technical consultancy, job planning and commissioning in the field of the aforesaid equipment, transmission networks and systems.