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Search U.S. government technical reports digitized or harvested by TRAIL.
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2 results returnedSideboard device for improved face ventilation in coal mines
Improved shearer-clearer system for double-drum shearers on longwall faces
Published Year
Subject
- Coal mines and mining--Dust control (2)
- Coal-mining machinery (2) *
- Mine ventilation (1)
- Spray nozzles (1)
Author
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