Marine backhoe dredge
Material transfer apparatus and method
Material transfer apparatus and method
Method and apparatus for beneficiating soils during vacuum...
Method and apparatus for determining the depth of acceptable...
Method and apparatus for dredging and transporting dredged...
Method and apparatus for mining and metallurgically...
Method and apparatus for pneumatic excavation
Method and apparatus for water bottom removal of bottom material
Method and device for dredging underwater ground layers
Method and device for subsea dredging
Method for extracting and grading sand
Method for treating an underwater bed
Method of and apparatus for anchor installation
Method of and apparatus for installation of plate anchors
Monitoring device for motor-driven underwater grab bucket dredge