申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION;SCHULER, BARRY LEE;VARKEY, JOSEPH;MORRISON, MONTIE W. |
发明人 |
SCHULER, BARRY LEE;VARKEY, JOSEPH;MORRISON, MONTIE W. |