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发明名称
ROCK CORE BIT
摘要
申请公布号
EP0334806(B1)
申请公布日期
1993.10.13
申请号
EP19890810149
申请日期
1989.02.27
申请人
HILTI AKTIENGESELLSCHAFT
发明人
OBERMEIER, JOSEF
分类号
B28D1/04;E21B10/26;E21B10/04;E21B10/40
主分类号
B28D1/04
代理机构
代理人
主权项
地址
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