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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.
downhole logging and measuring equipment, namely, dual induction resistivity tools, spectral gammaray tools, bulk and spectral litho density tools, microdensity tools, borehole caliper tools and borehole compensated sonic tools for the measurement and analysis of geological formations; computer hardware and software for use in capturing, processing, analyzing, charting and storing data in the field of well and gas exploration and instruction manuals sold as a unit