9 Electric and electronic apparatus and instruments for measuring, checking (supervision), testing, regulating and monitoring; apparatus for measuring vibrations; apparatus for monitoring and detecting vibrations; apparatus for controlling and monitoring machines; scientific, natural, surveying, photographic, cinematographic, optical, weighing, measuring, signalling and checking (supervision) 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, calculating machines, data processing equipment and computers