Magneto-inductive submarine communications system and buoy
Marine transponder system
Master buoy system for acoustic array deployment, using underwat
Measurement of distance using ultrasonic signals
Method and a system for monitoring a sea area
Method and apparatus enabling remote release of hooks and...
Method and apparatus for determining physical quantities
Method and apparatus for verifying the location of a seismic bot
Method for extending GPS to underwater applications
Methods and apparatuses for seismic prospecting