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3 results returnedNovel coal-cutting bits and their wear resistances
Evaluation of the safety of one-hour compressed oxygen self-rescuers--results of destructive testing
Evaluation of high-pressure front-mounted water jets for frictional-ignition suppression
Published Year
Subject
- Coal mines and mining--Safety measures (3) *
- Bits (Drilling and boring)--Safety measures (1)
- Coal-cutting bits (1)
- Mechanical wear (1)
- Mine explosions--Prevention (1)
- Mine safety--Equipment and supplies--Testing (1)
- Oxygen--Industrial applications (1)
- Self-contained self-rescuer (Mine safety equipment)--Testing (1)
- Water jets (1)
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