Browse TRAIL Inventories

Design and operation of the coal planer, Ruhr District, Germany

Anthracite mechanical mining investigations :progress report 2 : preliminary testing of the Eickhoff shearing machine, model DEK

Anthracite mechanical mining investigations :progress report 1 : preliminary underground tests of the Bureau of Mines scraper-shaker loading machine for driving gangways

Anthracite mechanical mining investigations.

Anthracite mechanical mining investigations.

Anthracite mechanical mining investigations.


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