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Methane-indicating detectors prove dependable in sampling air in anthracite mines

Hazards of compressed-air jets for ventilating gassy mines

Published Year

• 1930-1939 (2)

Subject

• Coal mines and mining--Safety measures (2)
• Mine ventilation (2) *
• Anthracite coal (1)
• Compressed air (1)
• Mine safety (1)

Author

• Currie, R. D. (2) *
• Naus, L. L. (1)

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