Comparison of gas masks, hose masks, and oxygen breathing apparatus /

Bibliographic Details

Main Authors:	Katz, S. H. (Sidney Hershberg), 1884- (Author), Bourquin, J. J. (Author)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : Department of the Interior, Bureau of Mines, 1923.
Series:	Report of investigations (United States. Bureau of Mines) ; 2489.
Subjects:	Gas masks. Respirators (Medical equipment) Mine accidents.
Online Access:	https://purl.fdlp.gov/GPO/gpo92451