申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;KATHOL, NATHAN;NGUY, VI JIM;POPILIAN, CONSTANTIN VASILE |
发明人 |
KATHOL, NATHAN;NGUY, VI JIM;POPILIAN, CONSTANTIN VASILE |