申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;MARTINEZ, ISMAEL;HOMAN, DEAN, M.;VILLEGAS, LAURENT;HAZEN, GARY, A. |
发明人 |
MARTINEZ, ISMAEL;HOMAN, DEAN, M.;VILLEGAS, LAURENT;HAZEN, GARY, A. |