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Sealing openings in abandoned mines by pneumatic stowing

Published Year

• 1980-1989 (1)

Subject

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

Author

• Lipscomb, Jennings R. (1)
• Maksimovic, S. D. (1) *

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