| Author: | Yant, W. P. |
|---|---|
| Additional Authors: | Berger, L. B., McCaa, G. S. |
| Year: | 1930 |
| Document Type: | BMRA |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | C 22.12:3017 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 3017 |
| Subject: | Safety lamps--Testing |
| Link: | https://hdl.handle.net/2027/mdp.39015077566555 |