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Search U.S. government technical reports digitized or harvested by TRAIL.
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3 results returnedSome runaway car trips on inclines at coal mines
The significance of the Bureau of Mines approval of gas masks
Investigation of electrical equipment, safety lamps, and gas detectors for safety
Published Year
Subject
- Mine safety--Equipment and supplies (3) *
- Gas detectors (1)
- Gas masks (1)
- Mine lighting--Equipment and supplies (1)
- Mine rescue work (1)
- Safety lamps (1)
Author
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