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2 results returnedCoal-mine explosions and coal- and metal-mine fires in the United States in 1949
Coal-mine explosions and coal- and metal-mine fires in the United States in 1950, 1951, and 1952
Published Year
Subject
- Coal mine accidents--United States (2)
- Mine explosions--United States (2)
- Mine fires--United States (2) *
Author
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