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Blast-hole drilling with diamond drills at the Tennessee Copper Co. mines, Ducktown, Tenn.
| Author: | Beck, William A. |
|---|---|
| Year: | 1948 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7452 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 7452 |
| Subjects: | Diamond bits |
| Copper mines and mining--Tennessee | |
| Link: | https://hdl.handle.net/2027/mdp.39015077578253 |
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