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发明名称
ROERSEKSJON FOR ANVENDELSE I BOREHULL-OPERASJONER OG FREMGANGSMAATE VED FREMSTILLING AV SAMME
摘要
申请公布号
NO773421(A)
申请公布日期
1979.04.09
申请号
NO19770003421
申请日期
1977.10.06
申请人
SHELL INTERNATIONALE RESEARCH MIJ B.V.,
发明人
DENISON, EARLY BAGGETT,;DICKSON, LEON LOWE JR.,;MARSH, GARY LYNN,
分类号
E21B;E21B17/00;E21B47/12;(IPC1-7):E21B/
主分类号
E21B
代理机构
代理人
主权项
地址
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