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Methods of sampling and analyzing coal-mine dusts for incombustible content

Drill-dust collectors approved by the Bureau of Mines as of January 31, 1956

Published Year

• 1940-1949 (1)
• 1950-1959 (1)

Subject

• Coal mines and mining--Dust control (2) *
• Mine dusts (2) *

Author

• Owings, C. W. (2) *
• Greenwald, H. P. (1)
• Selvig, W. A. (1)

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