Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
Inventor
active
Apparatus for the mining of mineral matter, especially coal
Arrangement for erecting columnar supporting elements for underg
Arrangement for supplying of consumers with pressure fluids
Continuously operating mining machine for simultaneous excavatio
Continuously operating mining machines with plow and conveyor ch
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Profile ID: LFUS-PAI-P-234391