Active list of permissible explosives and blasting devices approved prior to June 30, 1937.
| Corporate Author: | |
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| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
[s.n.],
1937.
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| Subjects: | |
| Online Access: | Electronic resource (PDF) |
| Item Description: | Report covers permissible explosives and blasting devices approved for use in coal mines. Report presents tabular listing of explosives, including brand name, specifications, and manufacturer. |
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| Physical Description: | 1 online resource (23 pages), digital, PDF file |