Protection against lightning at surface and underground mining plants

Author:	Harrington, D.
Additional Authors:	Harrison, L. H., Parker, D. J.
Year:	1948
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7447
Series:	Information circular / Bureau of Mines ;
Report Number:	7447
Subjects:	Mine safety
	Lightning protection
Link:	https://hdl.handle.net/2027/mdp.39015077577644