申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;SMITH INTERNATIONAL, INC.;PRAD RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
FULLER, NATHAN;BOSWELL, CRAIG;ORBAN, JACQUES;MARSHALL, JONATHAN;ENGLUND, JORDAN |