Stump remover
Submarine sand sampler
Submarine vehicle for dredging and raising minerals resting on t
Submersible sludge removing apparatus
Subsurface cutting tool for a tractor ripper shank
Suction device for cleaning bottoms of waterways and for lifting
Suction drag system
Suction dredge cutter head
Suction dredge cutter head
Suction dredge with swell compensating ladder mount
Suction dredger
Suction dredger installation
Suction head for dredgers
Suction nozzle dredge head
Suction pipe position control
Support frame for motor, pump and suction tube of a suction dred
Swell compensator for suction dredging system
Swingable water and slush tube assembly for suction dredgers
Swinging device for dredger
System for collecting and conveying undersea mineral resources