Hazards from low or under voltage

Author:	Ilsley, L. C.
Year:	1929
Document Type:	MAIN
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6201
Series:	Information circular / Bureau of Mines ;
Report Number:	6201
Subjects:	Mine safety
	Electricity in mining
Link:	https://hdl.handle.net/2027/mdp.39015095082338