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发明名称
FREMGANGSMAATE OG ANLEGG FOR AA UNNGAA FASTKILING UNDER BROENNBORING, SAERLIG BASERT PAA SANNSYNLIGHETSBEREGNINGER.
摘要
申请公布号
NO893113(A)
申请公布日期
1990.02.05
申请号
NO19890003113
申请日期
1989.08.02
申请人
CHEVRON RESEARCH COMPANY
发明人
HEMPKINS, W. BRENT;KINGSBOROUGH, ROGER H.;LOHEC, WESLEY E.;NINI, CONROY J.
分类号
E21B31/03;E21B44/00;(IPC1-7):E21B7/00;E21B47/09
主分类号
E21B31/03
代理机构
代理人
主权项
地址
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