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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.
flowmeters for measuring, indicating, recording and controlling the flow of fluids; sight flow indicators; signaling or alarm devices and systems for sensing and regulating or controlling fluid level or fluid flow; motion or position transmitters for use in connection with flowmeters and fluid level indicators; flow-indicating, flow-recording, flow-controlling, flow-proportioning and flow-interpreting equipment for use with flowmeters to sense the position of a flow-responsive element and to transmit, signal, indicate or record the same at a place remote from the flowmeter, or to record, control, proportion or interpret the fluid flow to or from the flowmeter; and diaphragm-type pressure transmitting seals for use with pressure responsive flowmeters