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Search U.S. government technical reports digitized or harvested by TRAIL.
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4 results returnedPreparation characteristics of coal from Dickenson County, Va.
Preparation characteristics of coal from Greene County, Pa.
Preparation characteristics of coal from Allegheny County, Pa.
Preparation characteristics of coal from Washington County, Pa.
Published Year
Subject
- Coal preparation (4) *
- Coal--Pennsylvania--Allegheny County (1)
- Coal--Pennsylvania--Greene County (1)
- Coal--Pennsylvania--Washington County (1)
- Coal--Virginia (1)
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