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Development and safety of the storage-battery locomotive
Hazards of the trolley-locomotive haulage system in coal mines
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Published Year
1920-1929 (1)
1940-1949 (1)
Subject
Coal mines and mining--Safety measures (2)
Mine haulage--Safety measures (2)
Mine railroads--Safety measures (2) *
Author
Harrington, D. (1)
Ilsley, L. C. (1)
Warncke, R. G. (1)
