Prediction of penetration rate for percussive drilling

Author:	Selim, A. Aly.
Additional Authors:	Bruce, William E.
Year:	1970
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.23:7396
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	7396
Subjects:	Boring
	Boring machinery
	Percussion drilling
Link:	https://hdl.handle.net/2027/mdp.39015078533109