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List of respiratory protective devices approved by the U.S. Bureau of Mines
- Author / Creator
- Available as
- Physical
Details
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- Creator
- by H.H. Schrenk
- Format
- Books
- Language
- English
- Publication
-
- Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1941
- Physical Details
-
- 11 pages : illustrations ; 27 cm
- OCLC
- ocm70833346
- "January 1941" .