Software [ and electronic computer hardware ] used in geophysical surveying; Software [ and electronic computer hardware ] used in the creation and interpretation of seabed and river-bed maps and charts and associated surveying machines and instruments for hydrographic and geophysical survey; imaging sonar; [ imaging seismographer; computers, computer monitors, video monitors, electronic sensors, transmitters and receivers used in sonar and seismic imaging; ] Software [ and electronic computer hardware ] used in the collection, processing, display and recording of data from underwater sensors in imaging systems, such as sonar and seismic systems; Software [ and electronic computer hardware ] used in the measurement of motion, attitude and position of surface watercraft, namely, ships and boats and undersurface watercraft, namely, submarines; Sonar equipment and parts thereof, electronic computer hardware and software used in the imaging and measurement of seabed and subseas structures