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Kohle
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World's longest single flight belt conveyor
Big wheel loaders handle many jobs
Electronically controlled braking and transportation devices in mine car circulation
Transportation of coal slurries in pipelines
Experiments into practical application of Hunslet diesel tractor at Merry Lees Colliery
Present state of developments in hydraulic transportation in coal industry
High capacity shiploading system geared to immediate train turn-around
Coal loading facility features selective blending
Some experiences with diesel underground supplies vehicles
Airlift and lift equipped with container feeders
Hydraulically operated clean coal tripper
Pushbutton plant to thaw coal cars is built by Baltimore utility