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Rotary drilling holes in coalbeds for degasification
| Main Author: | |
|---|---|
| Corporate Author: | |
| Other Authors: | , |
| Format: | Government Document Online Book |
| Language: | English |
| Published: |
[Pittsburgh, Pa.?] :
U.S. Dept. of the Interior, Bureau of Mines,
[1975]
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| Series: | Report of investigations (United States. Bureau of Mines) ;
8097. |
| Subjects: | |
| Access: | ONLINE VERSION |
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