9
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; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
electronic instruments for use in connection with the measurement, testing and analysis of fuel and lube oil characteristics, namely, contaminant levels, density, viscosity, blending ratio, ignition quality, fuel stability and compatibility, water content, calorific value, and base number of lube oil