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List of manufacturers of permissible equipment and explosion-proof accessories, as of January 1, 1930

Dust protection afforded by enclosed cabs on surface and underground mine machinery

Published Year

• 1930-1939 (1)
• 1970-1979 (1)

Subject

• Mineral industries--Equipment and supplies (2) *
• Dust control (1)
• Mine dusts (1)

Author

• Covelli, Authony, (1)
• Ilsley, L. C. (1)
• Thimons, Edward D., (1)
• Volkwein, J. C. (1)

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