Safety system for scuba divers operating underwater...

Safety system for scuba divers operating underwater...

SCUBA diver fairing

Selective weight release

Self propelled cleaning device for marine seismic streamers

Self propelled underwater device with steerable fin stabilizer

Self-contained sea water linear actuator

Self-propelled manned submersible vehicles for under-sea excursi

Semi-submersible marine craft

Semi-submersible tanker with directional ice cutters

Sequence of selective emitters matched to a sequence of photovol

Shock crush sub-foundation

Simulator and method for performing underwater submarine...

Small device launch system

Small gliding underwater craft

Snorkel apparatus and methods of use

Snorkel mast for a semi-submersible vehicle

Snorkling board and accessory propulsion unit therefor

Specific gravity equalizer system

Spherical underwater vehicle