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Topical Subjects
- Coal mines and mining--West Virginia--Fairmont.1
- Coal mines and mining.1
- Coal washing--West Virginia--Beckley.1
- Coal-mining machinery--Maintenance and repair.1
- Counties--Kanawha.1
- Flow meters.1
- Machine shops--West Virginia--Beckley.1
- Mine fires--West Virginia--Fairmont.1
- Mine railroads--West Virginia.1
- Mine railroads.1
- Mining machinery.1