Sealing openings in abandoned mines by pneumatic stowing
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| Main Author: | |
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
[Avondale, Md.]
U.S. Dept. of the Interior, Bureau of Mines
1982
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| Series: | Report of investigations
8730 |
| Subjects: | |
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