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Bituminous coal-mine safety-inspection outline
Small portable coal-dust explosion gallery
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Published Year
1930-1939 (1)
1940-1949 (1)
Subject
Coal mines and mining--Safety measures (2) *
Bituminous coal (1)
Mine dusts (1)
Mine explosions (1)
Author
Grove, G. W. (2) *
Fene, W. J. (1)
Freas, G. L. (1)
