申请人 |
SCHLUMBERGER LIMITED;SCHLUMBERGER CANADA LTD.;PRAD RESEARCH AND DEVELOPMENT N.V.;SCHLUMBERGER SURENCO S.A.;SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER OVERSEAS S.A.;SCHLUMBERGER SERVICES LIMITED;SCHLUMBERGER HOLDINGS LIMITED;DOERING, FALK;SHEIRETOV, TODOR;EWAN, ROBIN;FOURBERT, BENOIT |
发明人 |
DOERING, FALK;SHEIRETOV, TODOR;EWAN, ROBIN;FOURBERT, BENOIT |