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Rotary drilling holes in coalbeds for degasification
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Main Author: | |
---|---|
Corporate Author: | |
Other Authors: | , |
Format: | Government Document Electronic eBook |
Language: | English |
Published: |
[Pittsburgh, Pa.?] :
U.S. Dept. of the Interior, Bureau of Mines,
[1975]
|
Series: | Report of investigations (United States. Bureau of Mines) ;
8097. |
Physical Description: |
21 pages : digital, PDF file. |
Subjects: | |
Online Access: | https://purl.fdlp.gov/GPO/LPS98449 Full text |
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