000 | 01066pam a2200277 a 4500 | ||
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999 |
_c4514 _d4514 |
||
001 | 3310633 | ||
003 | Biblioteca de INTEMIN | ||
005 | 20180710135801.0 | ||
008 | 830922s1984 mdua b f000 0 eng | ||
010 | _a 83600306 | ||
040 |
_aDLC _cDLC _dDLC |
||
050 | 0 | 0 |
_aTN23 _b.U43 no. 8844 _aTN297 |
082 | 0 | 0 |
_a622 s _a622/.8 _219 |
086 | 0 | _aI 28.23:8844 | |
245 | 0 | 2 |
_aA Short-range locator system for detecting trapped miners / _cby William E. Webb ... [et al.]. |
260 |
_a[Avondale, Md.] : _bU.S. Dept. of the Interior, Bureau of Mines, _c1984. |
||
300 |
_aii, 22 p. : _bill. ; _c28 cm. |
||
490 | 1 |
_aReport of investigations ; _v8844 |
|
504 | _aBibliography: p. 18-22. | ||
650 | 0 |
_aMine rescue work _xEquipment and supplies. _93144 |
|
650 | 0 |
_aRadio _xTransmitters and transmission. _98875 |
|
650 | 0 |
_aMine communication systems. _98757 |
|
700 | 1 |
_aWebb, William E. _93586 |
|
830 | 0 |
_aReport of investigations (United States. Bureau of Mines) ; _v8844. _9793 |
|
906 |
_a7 _bcbc _corignew _d1 _encip _f19 _gy-gencatlg |
||
942 |
_2udc _cCR |