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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.
[ drawing instruments comprising compasses, dividers, proportional dividers, bow instruments, beam compasses, railroad pens, dotting pens, trammels, drawing pens, and perambulators (or opisometers); protractors; draftsmen's or linear scales, rules, triangles, curves, straightedges and t-squares, drawing boards, drawing pins and horncenters, measuring tapes, pantographs, parallel rules, railroad curves, splines and spline weights, lineads (centrolineads), drawing tables, surveying instruments comprising levels, engineers' y levels, transits, engineers' transits and parts thereof, theodolites, dumpy levels and magnetic compasses; leveling screws, level vials, hand levels, leveling rods, leveling poles, surveyors' targets, leveling targets, measuring chains, surveyors' arrows, plumb bobs, handles for tapes, section liners, triangular scale guards, folding pocket rules, barometers, aneroid barometers, magnifying glasses, ] planimeters, map measures, [ mathematical calculating instruments, ] slide rules [ tripods for levels and transits, sextants, mining compasses, surveying compasses, tripods and jacob staffs, clinometers, angle mirrors and prisms, anemometers or windgauges, field and marine glasses ], paper base photosensitive reproduction materials, [ print frames and bath trays, folding trestles for drawing boards, architects' levels, mining lamp and plummet, pocket alt-azimuth, staff heads, pedometers and odometers, ] erasing fluid for photo-images, [ solar attachment for surveying instruments, extension tripods, plane tables, alidades, octants, artificial horizons, trigonometers, ] cloth and other base photosensitive reproduction materials, [ mountings for exposing print frames, band chains (sometimes known as chain measuring tapes), print holding spring clips, extension measures, shrinkage rules, spring joint steel rules, mining target with lamp, expedition transit, architect's level with compass, railroad y level, railroad transit, locating transit, traverse tables, military compass, telemeter target, rain gauges, current meters, thread counters, tree calipers, increment borers, spyglasses, ] lettering sets consisting of lettering pens, lettering templates, lettering scribers, and other lettering devices, [ bark measuring instruments and drafting machines ]