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Economies through roof bolting in an Indiana coal mine

Some factors affecting and suggested ways for improving coal-mine ventilation, with particular reference to mines in Illinois, Indiana, and Western Kentucky

Published Year

• 1950-1959 (2) *

Subject

• Coal mines and mining--Indiana (2) *
• Coal mines and mining--Illinois (1)
• Coal mines and mining--Kentucky (1)
• Mine roof bolting (1)
• Mine ventilation (1)

Author

• Herbert, C. A. (1)
• Kelly, L. W. (1)

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