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- U.S. Bureau of Mines
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- Unpublished documents and reports
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1/1/1990 - Unpublished documents and reportsThis report presents the origins of the Bureau of Mines and the evolution of the Pittsburgh Research Center from its inception to its present form. Areas of major research emphasis over the years, as well as administrative reorganizations, are discussed.
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Content source: National Institute for Occupational Safety and Health, Mining Program