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发明名称
APPARAT OG FREMGANGSMAATE FOR TILDRAGNING OG LOESNING AV SKJOETER I BOREROERSTRENGER
摘要
申请公布号
NO931235(A)
申请公布日期
1993.06.11
申请号
NO19930001235
申请日期
1993.03.31
申请人
HAWK IND INC
发明人
HAUK THOMAS D
分类号
E21B19/16;(IPC1-7):E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
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