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发明名称
HAMMER MACHINERY
摘要
申请公布号
JPH07189579(A)
申请公布日期
1995.07.28
申请号
JP19920122007
申请日期
1992.05.14
申请人
YUNIROTSUKU AB
发明人
IERUGEN RODERUTO;KURUTO ANDERUSON
分类号
E21B10/60;E21B4/06;E21B6/02;E21B7/20;(IPC1-7):E21B10/60;E21B6/00
主分类号
E21B10/60
代理机构
代理人
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