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Diamond-bit performance in schist
Diamond-bit performance in limestone and dolomite
Diamond-bit performance in sandstone
Diamond-bit performance in cherty limestone and cherty dolomite
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Published Year
1950-1959 (4)
Subject
Boring machinery (4) *
Diamond bits (4)
Dolomite (2)
Limestone (2)
Rock-drills (1)
Sandstone (1)
Schists (1)
Author
Long, Albert E. (4) *
Gallagher, Michael J., (1)
Hausen, Donald M. (1)
Johnson, George H. (1)
