Aerial tramways in the metal-mining industry.
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| Title: | Aerial tramways in the metal-mining industry. |
|---|---|
| Authors: | Metzger, O. H. |
| Source: | United States Bureau of Mines. Information Circular; 1940, Vol. 7095, p1-47, 47p |
| Database: | Applied Science & Technology Source |
| Description not available. |
