Toward development of a hard-rock mining machine--drag cutter experiments in hard abrasive rocks

Author:	Morrell, Roger J.
Additional Authors:	Wilson, Richard J.
Year:	1983
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:8784
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	8784
Subjects:	Drag bits (Drilling and boring)--Testing
	Rock mechanics
	Mining machinery
Link:	https://hdl.handle.net/2027/mdp.39015078477679