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发明名称
FREMGANGSMAATE OG INNRETNING FOR GRUSPAKKING I BROENNHULL
摘要
申请公布号
NO802999(A)
申请公布日期
1981.06.29
申请号
NO19800002999
申请日期
1980.10.08
申请人
HALLIBURTON CO,
发明人
BAKER, EUGENE EARL,;SZARKA, DAVID DURWARD,;DAVIS, ODIE RICHARD SEAGRAVES,;WORKMAN, NOLAN MONROE,
分类号
E21B23/00;E21B33/122;E21B33/124;E21B34/12;E21B43/04;(IPC1-7):E21B/
主分类号
E21B23/00
代理机构
代理人
主权项
地址
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