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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.
computer programs for creating, visualizing, plotting, and editing borehole diagrams, namely, well casings, liners, tubing and tubing nipples, tubing hangers and crossovers, perforations, cement zones, packers, plugs, and other borehole structures used in the exploration and production of oil and gas and manuals distributed therewith