| 000 | 00557nab a2200169 4500 | ||
|---|---|---|---|
| 005 | 20260520000802.0 | ||
| 008 | 260224s2009 xxu | ||
| 245 | 0 | 0 |
_aPDC technology rederines standards _bPCD bit technology is fine-tuned for specific formations located in fields traditionally dominated by roller cone bit applications |
| 260 |
_a _b _cfeb. 2009 |
||
| 270 | _a2009-02-17 ; 2009-02-17 | ||
| 300 | _a1 p. ; 52 | ||
| 581 | _a2 | ||
| 773 | 0 |
_tE & P _g82 |
|
| 942 | _cARTICULO | ||
| 100 | 1 |
_aCraig, Kevin _940303 |
|
| 999 |
_c169026 _d169026 |
||