The value of oxygen breathing apparatus to the mining industry

Author:	Denny, E. H.
Additional Authors:	Bernewitz, Max Wilhelm von,
Year:	1923
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:2445
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	2445
Subjects:	Mine rescue work--Equipment and supplies
	Mine safety
	Breathing apparatus
	Respirators (Medical equipment)
Link:	https://hdl.handle.net/2027/mdp.39015086555599