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- Equipment, tools, and parts:
- Electronic tracking systems
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Results 11 - 12 of 12
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1/1/1977 - Information CircularsThis Bureau of Mines report on underground mine communications addresses methods and equipment to meet the communication requirements of working sections and places of coal and metal-nonmetal mines. A review of the status of trapped miner detection is a...
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11/1/1974 - Contract reportsThe report describes the design and building of 15 mancarried and 5 helicopter receivers that are used for trapped miner location during a mine disaster. Helicopters are equipped with six-channel receivers and used to detect transmitters carried by mine...
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Content source: National Institute for Occupational Safety and Health, Mining Program