Some haulage safety devices for use on grades, slopes, and inclined shafts

Author:	Grove, G. W.
Additional Authors:	Ash, S. H., Ristedt, E. J.
Year:	1942
Document Type:	MAIN
Issuing Agency:	U.S. G.P.O.,
Series:	Miners' circular ;
Report Number:	43
Subjects:	Mining machinery--Safety measures
	Mine safety--Equipment and supplies
	Mine haulage--Safety appliances
Link:	https://hdl.handle.net/2027/mdp.39015077562315