List of permissible self-contained oxygen breathing apparatus, gas masks, and hose masks / by the Bureau.
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Bureau of Mines,
1930.
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| Series: | Information circular (United States. Bureau of Mines) ;
6362. |
| Subjects: |
| Item Description: | At head of title: Department of Commerce--Bureau of Mines. No.6351-6400 issued bound together. |
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| Physical Description: | 2 pages ; 27 cm. |