Permissible mining-loading equipment

Author:	Brunot, H. B.
Year:	1956
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7736
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	7736
Subjects:	Mining machinery
	Loaders (Machines)
Link:	https://hdl.handle.net/2027/mdp.39015078459438