9 Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers, blank recording discs; DVDs and other digital recording media, namely, CD-Roms; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment; computers; computer software for the installation, commissioning, maintenance, operation and management of wind turbines and wind parks; fire-extinguishing apparatus.