申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;PETROLEUM RESEARCH & DEVELOPMENT N.V.;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER OVERSEAS S.A.;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER SURENCO S.A.;SCHLUMBERGER SERVICES LIMITED;CENS, FABIEN;GALLAND, GILBERT;CHYZAK, JEAN-PIERRE |
发明人 |
CENS, FABIEN;GALLAND, GILBERT;CHYZAK, JEAN-PIERRE |