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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.
collection systems comprised of vacuum pumps, conveyers, metal storage tanks, hoses, containment pans and sealing packs comprised of canisters of expandable foam to contain drilling fluids, all sold together as a unit and as replacement parts therefore for use in the drilling of oil and gas wells for the collection, transportation, storage and separation of solid wastes, the reclamation and recycling of drilling fluids and the cleaning of pits, sand traps and vessels