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Advanced mine rescue training course of the Bureau of Mines

Mine rescue life-line telephone assemblies

Published Year

• 1930-1939 (1)
• 1940-1949 (1)

Subject

• Mine rescue work (2) *
• Mine safety--Equipment and supplies (1)
• Training (1)

Author

• Forbes, J. J. (2) *
• Cash, F. E. (1)
• Griffith, F. E. (1)
• Petersen, Max S. (1)

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