申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;BERHEIDE, MARKUS;GRAU, JAMES A.;ROSCOE, BRADLEY ALBERT;STOLLER, CHRISTIAN;WRAIGHT, PETER;SIMON, MATTHIEU |
发明人 |
BERHEIDE, MARKUS;GRAU, JAMES A.;ROSCOE, BRADLEY ALBERT;STOLLER, CHRISTIAN;WRAIGHT, PETER;SIMON, MATTHIEU |