Energetics of percussive drills-longitudinal strain energy

Author:	Lundquist, Robert G.
Additional Authors:	Anderson, C. F.
Year:	1969
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.23:7329
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	7329
Subjects:	Boring
	Boring machinery
Link:	https://hdl.handle.net/2027/mdp.39015078532457