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Annual report of research and technologic work on coal :fiscal year 1949

Historical summary of coal-mine explosions in the United States

Published Year

• 1950-1959 (2) *

Subject

• Coal mines and mining--United States (2) *
• Coal (1)
• Mine explosions (1)

Author

• Fieldner, Arno Carl, (1)
• Gottlieb, Sidney. (1)
• Humphrey, Hiram Brown, (1)

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