An electromagnetic system for detecting and locating trapped miners / by James A. Powell ; Pittsburgh Mining and Safety Research Center.
Saved in:
Online Access: |
Connect to online resource |
---|---|
Main Author: | |
Corporate Author: | |
Format: | Government Document Book |
Language: | English |
Published: |
Washington :
U.S. Dept. of the Interior, Bureau of Mines,
1976.
|
Series: | Report of investigations (United States. Bureau of Mines) ;
8159. |
Subjects: |