申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT N.V.;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDING LIMITED;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER OVERSEAS S.A.;SCHLUMBERGER SEACO INC.;SCHLUMBERGER SURENCO S.A.;SERVICES PETROLIERS SCHLUMBERGER;JONES, TIMOTHY, GARETH, JOHN;JIANG, LI |
发明人 |
JONES, TIMOTHY, GARETH, JOHN;JIANG, LI |