Testing safety catches on mine cages at some eastern bituminous-coal mines

Author:	Sloman, H. J.
Year:	1944
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7290
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7290
Subjects:	Mine safety
	Coal mines and mining--Safety measures
Link:	https://hdl.handle.net/2027/mdp.39015074127187