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Coal-mine fatalities in the United States, 1922

Coal-mine fatalities in October, 1926

The National Safety Competition to assist in the reduction of mine and quarry accidents

Twenty-second semiannual motor gasoline survey

Twenty-second semiannual motor gasoline survey

The National safety competition of 1930

The National safety competition of 1931

The National safety competition of 1932

The National safety competition of 1935

The national safety competition of 1936

National safety competition of 1937

National safety competition of 1938

Injury experience in coal mining, 1967

Injury experience in coal mining, 1968

Injury experience in coal mining, 1969


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