Apparatus and method for mapping entry conditions in remote mini
Apparatus and method of shield excavation
Apparatus for automatically shifting the conveyor at the pit fac
Apparatus for controlling the discharge of pressurized liquid fr
Apparatus for controlling the steering mechanism of a mining mac
Apparatus for the mining of mineral matter, especially coal
Apparatus for transmitting data
Apparatus for working deposits by the open-cast working process
Attitude control means of tunnel boring machine shield
Automatic control system and method for a machine used for excav
Automatic excavating machine and method of operating the same
Blade control system for concrete cutting apparatus
Characterization of in situ oil shale retorts prior to ignition
Coal face support in a mine
Coal seam discontinuity sensor and method for coal mining appara
Compartmentalized file folder apparatus
Continuous control system for a mining or tunnelling machine
Continuously operating mining machines with plow and conveyor ch
Control for mining machine
Control mechanism for the extension units in the longwall...