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Recommendation of the bureau of mines on certain questions of mine safety
Miners' lamps, explosives definitions of degree of gassiness, auxiliary fans or blowers, rock dusting\ill\ sealing of sections not well ventilated, separate mine workings for intake and return air \ill\ definitions as to ventilation regulation: quantity and quality of air for ventilation, chiefly applying to coal mines: ways of escaping from mines. (See also Mines -- Information Cir no. 6091, Dec. 1, 1928 12 pp.)
Recommendation of the bureau of mines on certain questions of mine safety
Miners' lamps, explosives definitions of degree of gassiness, auxiliary fans or blowers, rock dusting\ill\ sealing of sections not well ventilated, separate mine workings for intake and return air \ill\ definitions as to ventilation regulation: quantity and quality of air for ventilation, chiefly applying to coal mines: ways of escaping from mines. (See also Mines -- Information Cir no. 6091, Dec. 1, 1928 12 pp.)
Recommendation of the bureau of mines on certain questions of mine safety
Coal Min
Coal Mining ; 6
1929
2 pages
Article (Journal)
English
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