Longwall Mining with A German Coal Planer
Pocahontas no. 3 Coalbed, Keystone, W. va.
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Contributions
- Harper, D. - Contributor
- Carman, C. - Contributor
Publication
1963 - s.n, S.l
Language
English
Subjects
Series Statement
- Report of investigations (United States. Bureau of Mines) -- 6291
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