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Drillability studies :percussive drilling in the field

Tunneling machine research :development of an experimental full-scale research rock cutting device

Published Year

• 1970-1979 (2)

Subject

• Boring machinery (2) *
• Cutting machines (1)
• Mining machinery (1)
• Percussion drilling (1)
• Tunneling (1)
• Tunneling--Equipment and supplies (1)

Author

• Schmidt, Robert L. (2) *
• Rad, Parviz F. (1)

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