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发明名称
BIT WITH CIRCULAR SHANK
摘要
申请公布号
JPS59158895(A)
申请公布日期
1984.09.08
申请号
JP19830212616
申请日期
1983.11.14
申请人
VEREINIGTE OSTERREICHISCHE EISEN & STAHLWERKE AG
发明人
KURAUSU KETSUTERAA
分类号
E21C35/18;E21C35/187
主分类号
E21C35/18
代理机构
代理人
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