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Modern beehive coke-oven practice.

Salvage of coal from mine refuse in the Pittsburgh district

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)

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