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发明名称
BORETAARN.
摘要
申请公布号
NO156797(B)
申请公布日期
1987.08.17
申请号
NO19850000435
申请日期
1985.02.06
申请人
HAUGHOM, KJELL
发明人
HAUGHOM, KJELL
分类号
E04H12/00;E21B;E21B15/00;(IPC1-7):E21B15/00
主分类号
E04H12/00
代理机构
代理人
主权项
地址
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