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Ventilation of the Butte mines, Anaconda copper mining company
Latest ventilation practice outlined; problem is temperature rather than purity; mine timber heat important factor; exhaust ventilation adopted; shaft compartments surfaced to reduce frictional resistance; flexible tubing used in dead ends.
Ventilation of the Butte mines, Anaconda copper mining company
Latest ventilation practice outlined; problem is temperature rather than purity; mine timber heat important factor; exhaust ventilation adopted; shaft compartments surfaced to reduce frictional resistance; flexible tubing used in dead ends.
Ventilation of the Butte mines, Anaconda copper mining company
Min. Congress Jl
Richardson, A.S. (author)
1929
4 pages
Article (Journal)
English
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