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发明名称
Gereedschap voor stotend boren.
摘要
申请公布号
NL193387(B)
申请公布日期
1999.04.01
申请号
NL19900001346
申请日期
1990.06.14
申请人
JAMES HIPP
发明人
分类号
E21B4/14;E21B4/16;E21B17/07;E21B31/113;(IPC1-7):E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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