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- catalog contributor b8585112.
- catalog created "1944.".
- catalog date "1944".
- catalog date "1944.".
- catalog dateCopyrighted "1944.".
- catalog extent "5 pp.".
- catalog isPartOf "United States. Bureau of Mines. Information Circular 7297".
- catalog issued "1944".
- catalog issued "1944.".
- catalog language "eng".
- catalog publisher "[Washington. The Bureau.]".
- catalog title "Control of silicosis hazard by substitution of quartz-free or low-quartz material for sand undermine locomotives.".
- catalog type "text".