申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;ALI, SYED;PANGA, MOHAN K., R.;STILL, JOHN, W.;TUSTIN, GARY, JOHN;GADIYAR, BALKRISHNA |
发明人 |
ALI, SYED;PANGA, MOHAN K., R.;STILL, JOHN, W.;TUSTIN, GARY, JOHN;GADIYAR, BALKRISHNA |