申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED;GRANT, JEFF;MAY, DALE;GRIFFITHS, ROGER;WELLER, GEOFF;STOLLER, CHRISTIAN |
发明人 |
GRANT, JEFF;MAY, DALE;GRIFFITHS, ROGER;WELLER, GEOFF;STOLLER, CHRISTIAN |