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1
Evaluation of the seismic system for locating trapped miners
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Government Document Online Book -
2
A short-range locator system for detecting trapped miners
Subjects: “…Mine rescue work Equipment and supplies.…”
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Government Document Online Book -
3
Electromagnetic surface fields due to a magnetic dipole buried in a three-layered earth
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Government Document Online Book -
4
Battery-powered spreading rescue tools for vehicle extrication.
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Government Document Online Book -
5
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6
Radio 101 : operating two-way radios every day and in emergencies : instructor's guide /
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Government Document Online Book -
7
Radio 101 : operating two-way radios every day and in emergencies : student handbook /
Subjects: Get full text
Government Document Online Book