9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking (inspecting), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; sound or image recording, transmission or reproduction apparatus; magnetic recording media, sound recording disks; mechanisms for coin-operated apparatus; cash registers; calculating machines; data processing terminals; computers; fire extinguishers; downloadable publications in electronic form; downloadable computer applications; software