SCIENTIFIC, NAUTICAL, SURVEYING AND ELECTRICAL APPARATUS AND INSTRUMEN TS (INCLUDING WIRELESS), PHOTOGRAPHIC, CINEMATOGRAPHIC, OPTICAL, WEIGH ING MEASURING, SIGNALLING, CHECKING (SUPERVISION), LIFE-SAVING AND TEACHING APPARATUS AND INSTRUMENTS; COIN OR COUNTER-FREED APPARATU S+ APPARATUS FOR THE CONTROL AND SUPERVISION OF INDUSTRIAL OPERATIONS AND OF ENTRY AND EXIT OF PERSONS, ANIMALS AND OBJECTS, OFGAMING AND VENDING MACINES AND OF COIN SORTING AND CHANGE-GIVING MACHINES; SO UND AND VIDEO RE...