申请人 |
WESTERN ATLAS INTERNATIONAL, INC., HOUSTON, TEX., US |
发明人 |
SIEMS, LEE EDWARD, RICHMOND TEXAS 77469, US;CHIEN, LORING CHARLES, HOUSTON TEXAS 77083, US;AMERINE, MARVIN KEITH, LAKE JACKSON TEXAS 77566, US;VORHEIER, WILLIAM PAUL, HOUSTON TEXAS 77081, US |