申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;HINKEL, JERALD J.;KUBALA, GREGORY;HUTCHINS, RICHARD D. |
发明人 |
HINKEL, JERALD J.;KUBALA, GREGORY;HUTCHINS, RICHARD D. |