Year: | 1985 |
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Document Type: | USBI |
Issuing Agency: | United States Dept. of the Interior, |
SUDOC: | I 28.27:9049 |
Series: | Information circular / Bureau of Mines ; |
Report Number: | 9049 |
Subjects: | Electricity in mining |
Electric currents--Grounding | |
Mines and mineral resources--Electric equipment | |
Link: | https://hdl.handle.net/2027/mdp.39015078459271 |