Author: | Ilsley, L. C. |
---|---|
Year: | 1930 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
SUDOC: | C 22.11:6263 |
Series: | Information circular / United States, Bureau of Mines ; |
Report Number: | 6263 |
Subjects: | Electricity in mining |
Electric cables | |
Link: | https://hdl.handle.net/2027/mdp.39015077576125 |