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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
State regulations pertaining to the use of internal combustion engines underground
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Published Year
1930-1939 (1)
1950-1959 (1)
1980-1989 (1)
Subject
Internal combustion engines--Safety measures (3) *
Mine safety--United States (3)
Tunnels--Safety measures (1)
Author
Gleim, E. J. (2)
Holtz, J. C. (1)
Ilsley, L. C. (1)
Waytulonis, Robert W. (1)
