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发明名称
FREMGANGSMAATE FOR BEHANDLING AV ET BOREHULL.
摘要
申请公布号
NO902702(D0)
申请公布日期
1990.06.18
申请号
NO19900002702
申请日期
1990.06.18
申请人
CONOCO INC;DU PONT DE NEMOURS AND COMPANY, E.I.
发明人
CANTU, LISA A.;OSBORNE, MARION W.;MCBRIDE, EDWARD F.
分类号
C09K8/10;C09K8/62;C09K8/88;E21B43/26;(IPC1-7):E21B43/00
主分类号
C09K8/10
代理机构
代理人
主权项
地址
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