申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;UTTER, ROBERT;ONADEKO, GBENGA;HUSSER, ALEXIS |
发明人 |
UTTER, ROBERT;ONADEKO, GBENGA;HUSSER, ALEXIS |