9 Scientific, nautical, surveying, electric, photographic, cinematographic, optical, weighing, measuring, signaling, checking (supervision), life-saving and teaching apparatus and instruments; 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; telephone handsets; telephone receivers; alarms; burglar alarms; security alarms; panic alarms; fire alarms; smoke carbon monoxide alarms