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Bureau of Mines Safety Research Center research and development activities :fiscal year 1970
| Year: | 1972 |
|---|---|
| Document Type: | USBI |
| Issuing Agency: | Bureau of Mines, U.S. Dep. of the Interior, |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 8539 |
| Subject: | Mine safety--Research |
| Link: | https://hdl.handle.net/2027/mdp.39015078515114 |
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