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Sand and gravel excavation.

Sand and gravel excavation.

Some suggestions on safety in coal-mine haulage

Some phases of haulage accident prevention in anthracite mines

Published Year

• 1930-1939 (4) *

Subject

• Mine haulage (4) *
• Excavating machinery (2)
• Gravel (2)
• Mine safety (2)
• Sand (2)
• Anthracite coal (1)
• Coal mine accidents (1)
• Coal mines and mining (1)

Author

• Thoenen, J. R. (2)
• Currie, R. D. (1)
• Herbert, Charles Arthur, (1)

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