Diamond-bit performance in schist

Author:	Hausen, Donald M.
Additional Authors:	Long, Albert E.
Year:	1956
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:5291
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	5291
Subjects:	Boring machinery
	Schists
	Diamond bits
Link:	https://hdl.handle.net/2027/mdp.39015078468520