申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUBERGER;SCHLUMBERGER HOLDINGS LIMITED;PERKINS, LUKE, T.;STOLLER, CHRISTIAN;WRAIGHT, PETER |
发明人 |
PERKINS, LUKE, T.;STOLLER, CHRISTIAN;WRAIGHT, PETER |