9 Scientific, nautical, surveying, photographic, cinematographic, optical instruments and apparatus, weighing, measuring instruments, signaling, checking and supervision, life-saving and teaching apparatus; apparatus and instruments for conducting, switching, electric current conducting, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; mechanisms for coin-operated apparatus; cash registers; calculating machines; apparatus for processing database information, namely, data and word processors and computers, punched card office machines, fire extinguishers, cases for these tools and apparatus, safety clothing for protection against accident or injury, protective clothing against accidents, electrically heated clothing for protection against accident or injury