申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;GROVES, JOEL, L.;PERKINS, LUKE, T.;GUIZELIN, FABIEN;WRAIGHT, PETER |
发明人 |
GROVES, JOEL, L.;PERKINS, LUKE, T.;GUIZELIN, FABIEN;WRAIGHT, PETER |