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Approval system of the Bureau of Mines, as applied to permissible storage-battery locomotives :(fourth complete investigation under schedule 15)

Approval system of the Bureau of Mines as applied to permissible storage-battery locomotives :third complete investigation under schedule 15

Electrical accident prevention

Hazards from low or under voltage

Published Year

• 1920-1929 (4) *

Subject

• Mine safety (4) *
• Electric locomotives (2)
• Storage batteries (2)
• Coal mines and mining--Safety measures (1)
• Electricity in mining (1)
• Mine safety--Equipment and supplies (1)

Author

• Ilsley, L. C. (4) *
• Brunot, H. B., (2)

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