申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SUAREZ-RIVERA, ROBERTO;BATZER, WILLIAM B.;OCHOA, LUIS |
发明人 |
SUAREZ-RIVERA, ROBERTO;BATZER, WILLIAM B.;OCHOA, LUIS |