Continuous recorder to monitor mine roof displacement

Author:	Radcliffe, Daryl E.
Additional Authors:	FitzSimmons, James R.,
Year:	1977
Document Type:	TPRM
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines ;
SUDOC:	I 28.26/6:104
Series:	Technical progress report ;
Report Number:	104
Subjects:	Mining engineering
	Mine safety--Equipment and supplies
Link:	https://hdl.handle.net/2027/mdp.39015077583196