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发明名称
GESTEINSBOHRKRONE
摘要
申请公布号
DE3809428(A1)
申请公布日期
1989.10.12
申请号
DE19883809428
申请日期
1988.03.21
申请人
HILTI AG, SCHAAN, LI
发明人
OBERMEIER, JOSEF, 8000 MUENCHEN, DE
分类号
E21B10/26;B28D1/04;E21B10/04;E21B10/40
主分类号
E21B10/26
代理机构
代理人
主权项
地址
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