9 SCIENTIFIC, NAUTICAL, SURVEYING, ELECTRIC, PHOTOGRAPHIC, CINEMATOGRAPHIC, OPTICAL, WEIGHING, MEASURING, SIGNALLING, CHECKING (SUPERVISION), LIFE-SAVING AND TEACHING APPARATUS AND INSTRUMENTS; APPARATUS FOR RECORDING, TRANSMISSION OR REPRODUCTION OF SOUND OR IMAGES, COMPACT DISCS, AUDIO AND VIDEO CASSETTES; MAGNETIC DATA CARRIERS, RECORDING DISCS; AUTOMATIC VENDING MACHINES AND MECHANISMS FOR COIN OPERATED APPARATUS; CASH REGISTERS, CALCULATING MACHINES, DATA PROCESSING EQUIPMENT AND COMPUTERS, COMPUTER SOFTWARE, THEIR PARTS AND ACCESSORIES NOT INCLUDED IN OTHER CLASSES; FIRE-EXTINGUISHING APPARATUS