Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; compact discs, dvds and other digital recording media; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment, computers; fire-extinguishing apparatus; computer software; hardware (computer-); quantum computer hardware; cryomonitors; cables; electrical circuits; quantum dots [crystalline semi-conductor materials]; including the aforesaid goods for use in cryogenic environments and in the cryogenic field