Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments, in particular alarms, acoustic alarms, aerials, barometers, locks, electric, remote control apparatus, fire alarms, gasometers (measuring instruments), hygrometers, bells (warning devices), solenoid valves (electromagnetic switches), manometers, signal bells, sirens, buzzers, thermostats, sound locating instrument...

Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments, in particular alarms, acoustic alarms, aerials, barometers, locks, electric, remote control apparatus, fire alarms, gasometers (measuring instruments), hygrometers, bells (warning devices), solenoid valves (electromagnetic switches), manometers, signal bells, sirens, buzzers, thermostats, sound locating instrument...