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Electrical motored equipment :approvals and extensions

List of motors available to prospective builders of permissible outfits

List of standard starters available to prospective builders of permissible outfits

Published Year

• 1920-1929 (1)
• 1930-1939 (2)

Subject

• Coal mines and mining--Safety measures (3) *

Author

• Means, M. W. (3) *
• Ilsley, L. C. (2)
• Brunot, H. B. (1)

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