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.
oil and gas well machines, namely, shooting panels for operating perforating guns comprised of electronic components in the nature of switches for controlling tools in oil wells. oil and gas well equipment, namely, logging tools comprised of sensors for obtaining well data acquisition, namely, sensors that detect electromagnetic or radiological signals transmitted, reflected, or refracted from the rock