9
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.
[ machines for testing the strength of materials; ] instruments responsive to, and instruments for measuring, indicating, and recording strain produced by fluid pressure forces or forces in tension, compression, torsion, or bending [ air speed measuring instruments and altimeters; railway track weighing scales; crane weighting scales, railway vehicles specially made for testing track weighing scales; and wind tunnels for testing airplane models or the like ]