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Economics of crushed-stone production

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Building seals by pneumatic stowing in mine closure operations

Sealing openings in abandoned mines by pneumatic stowing

Published Year

• 1930-1939 (1)
• 1960-1969 (1)
• 1980-1989 (2)

Subject

• Stone, Crushed (4) *
• Compressed air (2)
• Mine filling (2)
• Gravel (1)
• Mine closures (1)
• Sand (1)
• Stone (1)

Author

• Bowles, Oliver, (2)
• Maksimovic, S. D. (2)
• Draper, John C. (1)
• Lipscomb, Jennings R. (1)
• Williams, Roger L. (1)

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