Author: | Ferber, Benjamin I. |
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Additional Authors: | Rhode, Albert., Brenenborg, Fred J. |
Year: | 1970 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:7403 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7403 |
Subjects: | Respirators (Medical equipment) |
Breathing apparatus | |
Filters and filtration | |
Link: | https://hdl.handle.net/2027/mdp.39015078533570 |