9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, life-saving and teaching apparatus and instruments, namely, cameras, digital cameras, optical reflectors; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electrical conductors, electrical switches, transformers, electrical controllers; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers and blank recordable optical discs; prerecorded magnetic data carriers featuring music and movies; pre-recorded digital media, namely, compact disks, DVDs and other digital recording media featuring music and movies; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment, computers; software for management of oil, gas, natural gas, fuel and electricity supply and distribution, exploration, information exchange, network access, meter readings, and pricing; fire extinguishing apparatus