| Author: | Rodriguez, Ernest R. |
|---|---|
| Additional Authors: | Look, Allen D. |
| Year: | 1951 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7612 |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 7612 |
| Subject: | Hoisting machinery |
| Link: | https://hdl.handle.net/2027/mdp.39015078456046 |