American Standard Safety Code for Installing and Using Electrical Equipment in and About Coal Mines (M2.1)
| Year: | 1952 |
|---|---|
| Document Type: | N/A |
| Issuing Agency: | United States. Bureau of Mines., American Mining Congress |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Bulletin 514 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc12673/ |