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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 controllers for initiation systems, ignition systems and explosive devices for initiating perforation processes, ignition processes, and explosion processes for use in the oil and gas industry; electronic control systems comprising electric wires, addressable digital switches, micro controllers, and electronic circuitry for ignition devices, initiation devices, and explosive devices for use in the oil and gas industry