申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;MORIARTY, KEITH A.;ROCK, DEVIN;UTTER, ROBERT |
发明人 |
MORIARTY, KEITH A.;ROCK, DEVIN;UTTER, ROBERT |