申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SKEATES, CRAIG;GILL, GARY, E.;MAHDI, ABBAS;LINN, BRYAN, C. |
发明人 |
SKEATES, CRAIG;GILL, GARY, E.;MAHDI, ABBAS;LINN, BRYAN, C. |