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Dangerous and safe practices in bituminous coal mines
| Author: | Steidle, Edward, |
|---|---|
| Year: | 1919 |
| Document Type: | MAIN |
| Issuing Agency: | Govt. Print. Off., |
| Series: | Miners' circular ; |
| Report Number: | 22 |
| Subject: | Coal mines and mining--Safety measures |
| Link: | https://hdl.handle.net/2027/mdp.39015077562141 |
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