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Permissible mine equipment approved by the Bureau of Mines during 1963-64 :a supplement to Bulletin 543 and Information Circular 8220
| Author: | Lee, Frank R. |
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| Additional Authors: | Evans, Robert L. |
| Year: | 1966 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:8299 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 8299 |
| Subject: | Mining machinery |
| Link: | https://hdl.handle.net/2027/mdp.39015078470294 |
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