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