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Some suggestions on the prevention of electrical accidents in coal mines
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Published Year
1930-1939 (1)
Subject
Accidents--Prevention--United States (1)
Coal mine accidents--United States (1)
Electricity in mining--United States (1) *
Mine safety (1)
Author
Harrington, Daniel. (1)
Maize, Earl R. (1)
Owings, C. W. (1) *
