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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.
computerized distributed systems, comprised of several pc-based workstations comprised of the following; proprietary software for detecting, monitoring, displaying, recording and storing data relating to earth drilling operations, including drilling parameters and fluid system values for use in conjunction with earth drilling equipment used in the oil and gas industry, and software for customizing users' display format, all running on industrial grade pc-based computers; a master control center networked to the workstations, namely a networked enabled computer with a lcd color flat-panel display with a touch screen, and with an auxiliary pointing device, namely, an industrial grade computer mouse and keyboard; local data collection units networked to the master control center, namely computers with display monitors and keyboards; remote pc-based workstations comprised of proprietary software for collecting and displaying data relating to earth drilling operations, and network capable pc-based computers, linked by satellite to the master control center; and passive display monitors networked to the master control center, for acquiring, processing, and displaying drilling data