Personal sonar system
Personal sonar system
Point source localization sonar system and method
Portable and hand-held device for making humanly audible...
Precision doppler effect compensator
Process for signal transmission without electric connection thro
Quick deployment vehicle
Radio frequency phase sensitive wire detector
Receiver for receiving a plurality of asynchronously transmitted
Regenerative radio-frequency wire detector
Remote monitor unit
Remote self-contained undersea monitor
Scour detection and monitoring apparatus adapted for use in...
Scuba diving voice and communication system using bone conducted
Scuba diving voice and communication system using bone conducted
Sea state measuring system
Secure marine communication system
Secure sonar communication system
Seismic modem
Self-contained ambient noise recorder