Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
9 results returnedSearch results
- 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.
- Some roof-control practices in coal mines of the United Kingdom
- Anthracite mechanical mining investigations.
- Anthracite mechanical mining investigations.
- Experimental longwall mining in a Pennsylvania anthracite mine (In two parts).
- Hydraulic mining of anthracite :engineering development studies