Hydraulic-mechanical coal mining combine

Hydraulically actuated apparatus for the mechanical...

Hydraulically actuated tool for mechanically splitting...

Hydraulically actuated tool for mechanically splitting...

Hydraulically operated apparatus for mechanical splitting of...

Hydraulically operated apparatus for mechanically breaking...

Hydromechanical device with cutting and breaking heads, for...

Hydrothermal mineral extraction

Impact material fracturing device for excavators and the like

Impact tools or apparatus

Improvements in coal and rock picks

In situ sulphur remelter

Independent unit for the collection and upward transfer of...

Installation for two or more step excavating in a...

Latch mechanism for auger string couplings

Launch vehicle for continuous mining apparatus

Linear cutting rotary head continuous mining machine

Liquid jet cutting apparatus and method

Load-relieving device for servomotors adjusting the height...

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