Author: | Mosier, McHenry. |
---|---|
Year: | 1946 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7393 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7393 |
Subjects: | Rock-drills |
Magnetite | |
Boring | |
Mines and mineral resources | |
Link: | https://hdl.handle.net/2027/mdp.39015086585323 |