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A Short-range locator system for detecting trapped miners
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Published Year
1980-1989 (1)
Subject
Mine communication systems (1)
Mine rescue work--Equipment and supplies (1)
Radio--Transmitters and transmission (1) *
Author
Boyle, James R. (1)
Church, R. H. (1) *
Pittman, Walter E. (1)
Webb, William E. (1)
