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Speeding up rock work in anthracite mines
Discussion of costs, desirability of speed, and relations between coal-mine operators and rock contractors.
Speeding up rock work in anthracite mines
Discussion of costs, desirability of speed, and relations between coal-mine operators and rock contractors.
Speeding up rock work in anthracite mines
Min. Congress Jl
Stockett, B.H. (author)
1931
Article (Journal)
English
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Flood prevention in anthracite mines
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