Selection, use, and maintenance of respiratory protective devices

Author: Schrenk, H. H.
Additional Authors: Pearce, S. J.
Year: 1943
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7236
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 7236
Subjects: Respirators (Medical equipment)
Breathing apparatus
Mineral industries--Safety measures
Gas masks
Link: https://hdl.handle.net/2027/mdp.39015074126965

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