| Author: | Allan, Andrew. |
|---|---|
| Year: | 1950 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7541 |
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 7541 |
| Subjects: | Mining machinery |
| Pneumatic machinery | |
| Compressed air--Storage--Equipment and supplies | |
| Link: | https://hdl.handle.net/2027/mdp.39015078464024 |