9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments in heavy current engineering, namely for the fields of conduction, transformation, storage, regulation and control; apparatus and instruments in light current engineering, namely for the fields of telecommunication, high frequency and regulation, apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs, automatic vending machines and mechanism for coin operated apparatus, cash registers, calculating machines, data processing equipment and computers