Portable hand held pneumatic and water power excavator
Rotational and positionable arm-controlled underwater bottom...
Sediment relocation machine
Sediment removal system
Self-powered, submersible dredge apparatus
Sludge removal
Soil-excavating apparatus
Suction dredge pump apparatus
Suction excavator
Suction excavator
Tool for excavating an object
Trenching machine
Underwater mining dredge
Underwater sediment evacuation system
Vacuum excavation apparatus having an improved air lance, air la
Vacuum excavation apparatus having an improved air lance,...
Vacuum excavation system
Valve and semiconductor fabricating equipment using the same