Field testing the microminer--research continuous miner /
Enregistré dans:
| Auteur principal: | Johnson, Bradley V. |
|---|---|
| Collectivité auteur: | United States. Department of the Interior. Bureau of Mines |
| Autres auteurs: | Strebig, Kelly C., Krepela, Scott W. |
| Format: | Livre |
| Langue: | anglais |
| Publié: |
[Washington, D.C.] :
U.S. Dept. of the Interior,
1975.
|
| Collection: | Technical progress report (U.S. Departnent of the Interior.
89. |
| Sujets: | |
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