| 000 | 00974nam a2200277u 4500 | ||
|---|---|---|---|
| 001 | 01018620 | ||
| 003 | PWmBRO | ||
| 005 | 20180324092159.0 | ||
| 008 | 930823s1992 dcua b f000 0 eng | ||
| 010 | _a 92026918 | ||
| 069 | _a93035146 | ||
| 090 | 0 |
_aVF _b622/S917e |
|
| 100 | 0 | 0 |
_aStrickland, W. H. _q(William H.) |
| 245 | 1 | 0 |
_aCharacteristics of ultrasonic ranging sensors in an underground environment / _cby W.H. Strickland and R.H. King. |
| 260 |
_aWashington, DC : _bU.S. Dept. of the Interior, Bureau of Mines, _c1992. |
||
| 300 |
_aii, 39 p. : _bill. |
||
| 490 | 1 |
_aReport of investigations ; _v9452 |
|
| 650 | 0 |
_aMining machinery _xAutomatic control. |
|
| 650 | 0 | _aSonar. | |
| 700 | 1 | 0 | _aKing, Robert H. |
| 710 | 2 | 0 |
_aUnited States. _bBureau of Mines. |
| 810 | 2 | 0 |
_aUnited States. _bBureau of Mines. _tReport of investigations ; _v9452. |
| 830 | 0 |
_aReport of investigations (United States. Bureau of Mines) ; _v9452. |
|
| 942 | _2ddc | ||
| 994 | 0 | 1 | _a090298 |
| 999 |
_c69548 _d69548 |
||