申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT N.V.;CLARK, W. E.;BENTLEY, DOUG;DANIELS, JOHN;FREDD, CHRISTOPHER N.;MILLER, CHARLES;LASSEK, JOHN |
发明人 |
CLARK, W. E.;BENTLEY, DOUG;DANIELS, JOHN;FREDD, CHRISTOPHER N.;MILLER, CHARLES;LASSEK, JOHN |