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Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
8 results returnedMine pager to public telephone interconnect system
An electromagnetic system for detecting and locating trapped miners
Seismic detection of trapped miners using in-mine geophones
Underground mine communications(in four parts) :
Underground mine communications(in four parts) :
Published Year
Subject
- Mine communication systems (8) *
- Mine safety (2)
- Mines and mineral resources--United States (1)
- Mining engineering (1)
- Telephone in mining (1)
Author
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