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Suggested hoisting-signal code for metal-mine shafts

Suggested hoisting-signal code for slope coal mines and for shaft mines having only one level

Safety in the mining industry

Published Year

• 1940-1949 (3)

Subject

• Mineral industries--Safety measures (3) *
• Hoisting machinery (2)
• Mine hoisting--Safety appliances (2)
• Coal mines and mining--Safety measures (1)

Author

• East, J. H. (3) *
• Harrington, D. (3)
• Warncke, R. G. (1)

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