申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION;JOHNSTON, RUSSELL, A.;GOUGHNOUR, PAUL, G.;BIDDICK, DAVID, J. |
发明人 |
JOHNSTON, RUSSELL, A.;GOUGHNOUR, PAUL, G.;BIDDICK, DAVID, J. |