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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.
radio frequency identification devices to be attached to gas cylinders for transmitting information and data about gas contained in the cylinders, in the nature of, and for use exclusively in monitoring systems for gas cylinders, incorporating a blinking light visual alert which identifies when the contents of the gas cylinder are available for use, when the contents are nearing the expiration date, and when the contents should not be used because the contents are passed the expiration date; monitoring systems for gas cylinders, incorporating a blinking light visual alert which identifies when the contents of the gas cylinder are available for use, when the contents are nearing the expiration date, and when the contents should not be used because the contents are passed the expiration date