申请人 |
PRAD RESEARCH AND DEVELOPMENT NV;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER SEACO INC.;SCHLUMBERGER OVERSEAS S.A.;SCHLUMBERGER SURENCO S.A.;SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;THAMBYNAYAGAM, RAI, KUMAR, MICHAEL;SPATH, JEFFREY;BANERJEE, RAJ;WHITE, DAVID, BRIAN;GOODE, PETER |
发明人 |
THAMBYNAYAGAM, RAI, KUMAR, MICHAEL;SPATH, JEFFREY;BANERJEE, RAJ;WHITE, DAVID, BRIAN;GOODE, PETER |