申请人 |
SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER TECHNOLOGY B.V;PRAD RESEARCH AND DEVELOPMENT LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;GRAU, JIM, A.;BERHEIDE, MARKUS;STOLLER, CHRISTIAN |
发明人 |
GRAU, JIM, A.;BERHEIDE, MARKUS;STOLLER, CHRISTIAN |