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Casing blast holes
Water-bearing sand strata above rock in overburden at Sherwood-Templeton Friar Tuck Coal Mine at Linton, Ind, causes drilling problem that is met by using casing and modifying three Bucyrus-Erie 29-T electric churn drills used at mine.
Casing blast holes
Water-bearing sand strata above rock in overburden at Sherwood-Templeton Friar Tuck Coal Mine at Linton, Ind, causes drilling problem that is met by using casing and modifying three Bucyrus-Erie 29-T electric churn drills used at mine.
Casing blast holes
Excavating Engr
Excavating Engineer ; 39
1945
Article (Journal)
English
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