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Requirements for ventilation :Alabama mining law
| Author: | Cash, Frank E. |
|---|---|
| Year: | 1939 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 7068 |
| Subject: | Mine ventilation--Law and legislation--Alabama |
| Link: | https://hdl.handle.net/2027/mdp.39015077570532 |
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