申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT N.V.;SHELDON, KEN;PESSIN, JEAN-LOUIS;WAGO, TOSHIMICHI |
发明人 |
SHELDON, KEN;PESSIN, JEAN-LOUIS;WAGO, TOSHIMICHI |