Author: | Kloos, E. J. |
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Additional Authors: | Schutz, Robert H., Beckert, A. J. |
Year: | 1968 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:7192 |
Series: | Report of investigations / Bureau of Mines ; |
Report Number: | 7192 |
Subjects: | Respirators (Medical equipment) |
Breathing apparatus | |
Mine safety | |
Link: | https://hdl.handle.net/2027/mdp.39015078537720 |