Specially recommended trailing cable

Author:	Ilsley, L. C.
Year:	1930
Document Type:	MAIN
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6375
Series:	Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number:	6375
Subjects:	Cables
	Coal mines and mining--Safety measures
	Electricity in mining
Link:	https://hdl.handle.net/2027/mdp.39015095085208