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Size Consist, Chemical Analysis, and Physical Properties of 2-1/2-Inch Subbituminous Slack from the Denver, Colorado Region

Grounding Electrical Equipment In and About Coal Mines

Published Year

• 1940-1949 (2) *

Subject

• Coal mines and mining. (2) *
• Coal -- Colorado. (1)
• Mines and mineral resources -- Equipment and supplies. (1)

Author

• Griffith, Franklin E. (1)
• Parry, V. F. (1)

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