申请人 |
SERVICES PÉTROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
HELIOT, DENIS;BENNETT, NICHOLAS, N.;KUTIEV, GEORGI;LEGENDRE, EMMANUEL;GRIFFITHS, ROGER;DENICHOU, JEANMI;SEYDOUX, JEAN;LI, QIMING;ITO, KOJI |