申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;PETROLEUM RESEARCH & DEVELOPMENT N.V.;SCHLUMBERGER OVERSEAS S.A.;SCHLUMBERGER OILFIELD ASSISTANCE LIMITED;SCHLUMBERGER SURENCO S.A.;SCHLUMBERGER SERVICES LIMITED;SCHLUMBERGER SEACO INC.;GRIFFITHS, ROGER;PABON, MIGUEL |
发明人 |
GRIFFITHS, ROGER;PABON, MIGUEL |