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Active list of permissible explosives and blasting devices approved before December 31, 1957
| Author: | Hanna, N. E. |
|---|---|
| Additional Authors: | Damon, G. H. |
| Year: | 1958 |
| Document Type: | USBI |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | I 28.27:7832 |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 7832 |
| Subjects: | Explosives |
| Coal mines and mining--Safety measures | |
| Link: | https://hdl.handle.net/2027/mdp.39015078454140 |
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