9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; 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.
valves and pressure regulators for liquified petroleum gas and natural gas, namely, pneumatic and electrical level control, safety valves, chemical pumps, liquid level indicators, back pressure valves, globe valves, switches; valves for controlling the on-off flow through the cylinder or gas supply to a gas appliance, back check valves