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

Hazard of igniting coal by electric circuits in mines

Published Year

• 1930-1939 (2)

Subject

• Coal mines and mining--Safety measures (2)
• Electricity in mining (2) *
• Coal mines and mining (1)

Author

• Freeman, Howard Bassett, (2) *
• Gleim, E. J. (1)

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