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| 005 | 20260520000713.0 | ||
| 008 | 260224s xxu | ||
| 245 | 0 | 0 | _aPDC bit technology improvements increase efficiency, bit life |
| 270 | _a12/09/06 ; 11/04/2005 | ||
| 300 | _a3 p. | ||
| 773 | 0 |
_tDrilling Contractor _gVol 61, no 2 (mar./abr. 2005) ; p. 52-54 |
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| 942 | _cARTICULO | ||
| 100 | 1 |
_aMenand, Stephane _935786 |
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| 100 | 1 |
_aGerbaud, Laurent _935787 |
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| 700 | 1 |
_aGerbaud, Laurent _935787 |
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_c164128 _d164128 |
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