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Testing of coal-cutter materials for incendivity and radiance of sparks

Published Year

• 1970-1979 (1)

Subject

• Mine gases (1)
• Mine tools (1) *

Author

• Blickensderfer, Robert. (1)
• Copeland, M. I. (1) *
• Deardorff, D. K. (1)
• Kelley, J. E. (1)

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