Permissible explosives, mining equipment, and apparatus approved prior to January 1, 1925 /
Saved in:
| Language: | English |
|---|---|
| Format: | U.S. Federal Government Document Book E-Resource |
Table of Contents:
- Errata sheet, "Additions, removals and changes in permissible list of explosives from January 1, 1925 to July 31, 1926", at end.