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|
Permissible mine equipment approved during 1957-58
| Author: | Gleim, E. J. |
|---|---|
| Additional Authors: | Lee, F. R. |
| Year: | 1960 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7957 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 7957 |
| Subjects: | Mine safety |
| Mining machinery | |
| Link: | https://hdl.handle.net/2027/mdp.39015078460782 |
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