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- Equipment, tools, and parts:
- Mine phones
- Document types:
- Contract reports
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Results 1 - 2 of 2
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11/1/1981 - Contract reports, Open File ReportsAdvanced communication and monitoring systems were developed and demonstrated in three underground mines representing different mining techniques, geographical areas, and material mined.
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5/1/1973 - Contract reportsThe results of a two-year research effort aimed at improving communication systems in coal mines is reported, as well as a review of communication methods presently used in coal mines. Theoretical and-experimental results of a four pronged effort in the...
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Content source: National Institute for Occupational Safety and Health, Mining Program