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- catalog contributor b8924800.
- catalog created "1943.".
- catalog date "1943".
- catalog date "1943.".
- catalog dateCopyrighted "1943.".
- catalog extent "14 pp.".
- catalog isPartOf "United States. Department of Interior. Bureau of Mines. Information Circular 7237".
- catalog issued "1943".
- catalog issued "1943.".
- catalog language "eng".
- catalog publisher "[Washington. The Bureau.]".
- catalog title "List of respiratory protective devices approved by the U.S. Bureau of Mines.".
- catalog type "text".