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State laws relating to coal-mine timbering
| Author: | Paul, J. W. |
|---|---|
| Additional Authors: | Geyer, John Nicholas, |
| Year: | 1928 |
| Document Type: | USBM |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | C 22.5:421 |
| Series: | Technical paper / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 421 |
| Subjects: | Coal mines and mining |
| Mine timbering | |
| Mining law | |
| Links: | https://hdl.handle.net/2027/mdp.39015077315904 |
| https://hdl.handle.net/2027/mdp.39015086470914 |
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