Specially recommended trailing cables

Author:	Ilsley, L. C.
Year:	1931
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	c 22.11:6442
Series:	Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number:	6442
Subjects:	Electricity in mining
	Electric cable sheathing
Link:	https://hdl.handle.net/2027/mdp.39015077584186