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- catalog contributor b5061614.
- catalog created "1923.".
- catalog date "1923".
- catalog date "1923.".
- catalog dateCopyrighted "1923.".
- catalog extent "49 p.".
- catalog issued "1923".
- catalog issued "1923.".
- catalog language "eng".
- catalog publisher "Knoxville, Tenn.,".
- catalog subject "Coal mines and mining.".
- catalog subject "Electricity in mining.".
- catalog title "Mine power; factors in the economical generation, distribution, and maintenance of electrical power and power equipment in the coal mines of Tennessee and Kentucky. Prepared at the request of the Southern Appalachian Coal Operators Association. By W.R. Woolrich ...".
- catalog type "text".