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Metal-Mine Accidents in the United States During the Calendar Year 1938

Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1939 (Excluding Coal Mines)

Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1940 (Excluding Coal Mines)

Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1941 (Excluding Coal Mines)

Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1942 (Excluding Coal Mines)


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