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Modern beehive coke-oven practice.
Salvage of coal from mine refuse in the Pittsburgh district
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Published Year
1940-1949 (2)
Subject
Coal--Pennsylvania--Pittsburgh (1)
Coke industry--History (1)
Coke-ovens (1)
Coke-ovens--History (1)
Author
Kelley, J. A. (2) *
Fish, E. L. (1)
Fraser, Thomas. (1)
Graham, H. G. (1)
Schmidt, L. D. (1)
Scott, G. S. (1)
