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Safety practices and achievements at the Columbia Mine of the Columbia Steel Co. (subsidiary of the United States Steel Corporation)
| Author: | Parker, Dorsey Julian, |
|---|---|
| Year: | 1933 |
| Document Type: | USBI |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | I 28.27:6743 |
| Series: | Information circular ; |
| Report Number: | 6743 |
| Subject: | Mine safety |
| Link: | https://hdl.handle.net/2027/mdp.39015086486035 |
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