申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;LOGINED B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;MAUPIN, JAMES, M.;STEINTHAL, PHILIPPE, ROBERT;BASDEN, CHARLES, W. |
发明人 |
MAUPIN, JAMES, M.;STEINTHAL, PHILIPPE, ROBERT;BASDEN, CHARLES, W. |