Underground mine communications, control, and monitoring

Year: 1984
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 8955
Subject: Mine communication systems
Link: https://hdl.handle.net/2027/mdp.39015078466094

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