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.
seismic exploration machines and apparatus, namely, seismic air guns used in seismic data acquisition and seismic studies and parts therefor, solenoid valves, time break solenoid valves, and electronic firing controls for firing seismic air guns, namely, electronic circuits and electronic circuit boards, switches, openers and closers all for controlling discharge of seismic air guns used in seismic data acquisition and seismic studies