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State regulations pertaining to the use of internal-combustion engines in coal and metal mines and in tunnels

State regulations pertaining to the use of internal-combustion engines underground

Published Year

• 1930-1939 (1)
• 1950-1959 (1)

Subject

• Internal combustion engines--Safety measures (2) *
• Mine safety--United States (2)
• Tunnels--Safety measures (1)

Author

• Gleim, E. J. (2) *
• Holtz, J. C. (1)
• Ilsley, L. C. (1)

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