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Safety electric switches for mines

Permissible explosion-proof electric motors for mines :conditions and requirements for test and approval

Shot firing in coal mines by electricity controlled from outside

Suggested safety rules for installing and using electrical equipment in bituminous coal mines

State mining laws on the use of electricity in and about coal mines

Operation and maintenance of electrical equipment approved for permissibility by the Bureau of Mines

How leakage of current from an electric shot-firing circuit causes misfires

Maintenance of electrical mine equipment from the viewpoint of the safety inspector

Hazard of igniting coal by electric circuits in mines


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