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Description of the Eickhoff-Schr©·amlader longwall coal-cutting and loading machine
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