申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LTD;BECKER, ARTHUR J.;WANG, YANQI;ROSCOE, BRADLEY A.;SIMONETTI, JOHN |
发明人 |
BECKER, ARTHUR J.;WANG, YANQI;ROSCOE, BRADLEY A.;SIMONETTI, JOHN |