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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.
measuring gauges, apparatus, instruments, and accessories for measuring and testing dimensions, angles, and shapes-namely, caliper gauges, slip gauges, slip gauge accessories for associating a plurality of slip gauges in various assemblages for various measuring purposes, the same being holders, jaws, straight edges, scribers, centre points, and mounting bases; plain, and threaded taper gauges; measuring rods or bars; taper, and hardened and ground, parallels; vernier gauges; squares; sine bars; planar, and shaper, gauges; micrometer gauges; spline, and serration plug gauges; spline and serration ring gauges; master gauges for testing plug and ring spline and serration gauges; concentricity and receiver gauges; optical plane gauges, also known as optical flats, for gauging the flatness or plane of machined surfaces; internal taper gauges; internal taper thread gauges; precision dimension measurement machines; tap flute comparators; level comparators; interferometers for checking the plane or flatness and parallelism of lapped surfaces on slip gauges and optical surface plane gauges or optical flats; flank angle testing machines; hob and work checking machines; cam measuring machines; drill point gauges for measuring the angle of a drill point; thread measuring cylinders and prisms; surface plane gauges for testing the flatness of work-piece surfaces; and fatigue and stress testing machines