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Topical Subjects
- Coal mines and mining--Safety measures.[remove]14
- Coal Mines and Mining--Mine Safety.8
- Coal miners.4
- First aid in illness and injury.4
- Mine safety.3
- Ambulances.2
- Coal Mines and Mining--Miners at Work.2
- Coal Mines and Mining--Coal Carts.1
- Coal Mines and Mining--Coal Transportation--Facilities.1
- Coal Mines and Mining--Consolidation Coal Company.1
- Coal Mines and Mining.1
- Coal mines and mining--Dust control.1
- Coal trade--Accidents.1
- Coal-mining machinery.1
- Coalbed methane--Testing.1
- Fire engines.1
- Industrial films.1
- Mine rescue work.1