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Permissible electrically operated pumps
Inspection and testing of mine-type electrical equipment for permissibility
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Published Year
1940-1949 (2) *
Subject
Coal-mining machinery--Electric equipment (1)
Coal-mining machinery--Safety measures (1)
Coal-mining machinery--Testing (1)
Electricity in mining (1)
Mine pumps (1)
Mining machinery--Electric equipment--Testing (1)
Author
Brunot, H. B. (2) *
Gleim, E. J. (2)
ILsley, L. C. (1)
Ilsley, L. C. (1)
