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Anthracite mechanical mining investigations.
Anthracite mechanical mining investigations.
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Published Year
1950-1959 (2)
Subject
Anthracite coal industry--Equipment and supplies (2)
Coal-mining machinery (2) *
Mining machinery--Cutter bars--Testing (2)
Author
Allan, Andrew. (2) *
Buch, John W. (2)
Davies, Russell S. (1)
