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Active list of permissible explosives and blasting devices approved before Jan. 1, 1965
| Author: | Hanna, N. E. |
|---|---|
| Additional Authors: | Richardson, P. A. |
| Year: | 1965 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 8249 |
| Subjects: | Coal mines and mining--Explosives |
| Explosives--Law and legislation--United States | |
| Link: | https://hdl.handle.net/2027/mdp.39015077576950 |
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