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发明名称
Gesteinsbohrer fuer drehendes Bohren mit durch Hartmetalleinlagen gebildeten Schneidkanten
摘要
申请公布号
DE895882(C)
申请公布日期
1953.11.05
申请号
DE1948P004918
申请日期
1948.10.02
申请人
MEUTSCH HANS-JUERGEN
发明人
MEUTSCH HANS-JUERGEN
分类号
E21B10/26
主分类号
E21B10/26
代理机构
代理人
主权项
地址
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