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Some studies on emergency mine communications

Acid mine water in the anthracite region of Pennsylvania

Published Year

• 1940-1949 (2) *

Subject

• Acid mine drainage--Pennsylvania (1)
• Anthracite coal--Pennsylvania (1)
• Mine communication systems (1)
• Mine safety--Equipment and supplies (1)
• Radio in mining (1)

Author

• Felegy, E. W. (2) *
• Coggeshall, E. J. (1)
• Harrison, L. H. (1)
• Johnson, Leland H. (1)
• Westfield, James. (1)

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