Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for the conduction, conversion, transformation, accumulation, regulation and control of electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers and recording disks; automatic vending machines and mechanisms for coin operated apparatus; cash registers; calculating machines; data processing equipment; computers; fire-extinguishing apparatus; computer hardware, software and firmware; memories and memory extensions; printers for use with computers; central processing units; computer keyboards; computer monitors; computer peripheral devices; disk drives for computers; magnetic disks; disk drives for computers; mouse (data processing equipment); mouse pads; notebook computers