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Electromagnetic retransmission system for locating trapped mine workers. Open file report (final), August 1978-December 1979
Electromagnetic retransmission system for locating trapped mine workers. Open file report (final), August 1978-December 1979
1980
F H Raab
P.K. Hansen
Keywords:
Computer security
Direction finding
Mining engineering
Retransmission
Engineering
Correction
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