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Testing of coal-cutter materials for incendivity and radiance of sparks
Incendivity of some coal-cutter materials by impact-abrasion in air-methane
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Published Year
1970-1979 (2)
Subject
Mine tools (2) *
Mine gases (1)
Author
Blickensderfer, Robert. (2)
Copeland, M. I. (1)
Deardorff, D. K. (1)
Deardorff, Donald K., (1)
Kelley, J. E. (1)
Kelley, John E. (1)
