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Mill operating cost data

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By: United States. Bureau of Land Management. Portland Service Center.

Publication info: Portland, Or, U.S. Department of the Interior, Bureau of Land Management, Portland Service Center, 1969

Holding Institution: Bureau of Land Management

Subjects: Analysis Bureau of Land Management Cost of operation Costs Milling Mills and mill-work Mines and mineral resources Ores Records and correspondence United States
The ore deposits of the United States

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By: Kemp, James Furman,

Publication info: New York, Scientific Publishing, 1893

Holding Institution: University of California Libraries

Subjects: Canada Ore deposits Ores United States