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Ventilation of manholes.
Some of the hazards of auxiliary fans in coal mines
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Published Year
1930-1939 (1)
1940-1949 (1)
Subject
Ventilation (2) *
Air (1)
Fans (Machinery) (1)
Manholes (1)
Mine explosions (1)
Mine safety--United States (1)
Mines and mineral resources--United States--Safety measures (1)
Author
Baker, E. S. (1)
Campbell, John, (1)
Harrington, D. (1)
Jones, G. W. (1)
Warncke, R. G. (1)
