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Underground transportation of coal :Progress report 1

Underground transportation of coal :progress report [No.] 2

An analysis of the use of electricity at coal mines.

Mechanical mining in some bituminous-coal mines.

Published Year

• 1940-1949 (4)

Subject

• Coal mines and mining--Equipment and supplies (4) *
• Coal-handling machinery (3)
• Mine haulage (2)
• Bituminous coal (1)

Author

• Toenges, Albert L. (4) *
• Jones, Frank A. (3)
• Thomas, Edward. (2)
• Maize, Earl R. (1)
• Turnbull, Louis A. (1)

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