申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LTD;RAMAKRISHNAN, TERIZHANDUR;DELOUBENS, ROMAIN;ALTUNDAS, YUSUF, BILGIN |
发明人 |
RAMAKRISHNAN, TERIZHANDUR;DELOUBENS, ROMAIN;ALTUNDAS, YUSUF, BILGIN |