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Charts for determining the performance of centrifugal fans

Some observations on coal-mine fans and coal-mine ventilation

Published Year

• 1930-1939 (2) *

Subject

• Fans (Machinery) (2) *
• Mine explosions (1)
• Mine safety--United States (1)
• Mine ventilation (1)
• Mines and mineral resources--United States--Safety measures (1)

Author

• Denny, E. H. (1)
• Harrington, D. (1)
• McElroy, G. E. (1)

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