Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking (supervision), emergency (life-saving) and teaching apparatus and instruments; apparatus for recording, transmitting and reproducing sound or images; magnetic recording media, sound recording disks; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing and computer equipment; fire extinguishers; especially explorers (data processing apparatus), disk changers, magnetic tape units, interfaces, computer mice, couplers, readers, disk drives, computers, recorded computer programs, computer keyboards, computer memories, computer printers, magnetic cards, magnetic identity cards, memory or microprocessor cards, processors and microprocessors; apparatus and devices for controlling access to computers and databases