| Author: | Ilsley, L. C. |
|---|---|
| Additional Authors: | Gleim, E. J. |
| Year: | 1938 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7019 |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 7019 |
| Subjects: | Internal combustion engines--Safety measures |
| Mine safety--United States | |
| Tunnels--Safety measures | |
| Link: | https://hdl.handle.net/2027/mdp.39015077575770 |