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发明名称
CORE-BREAKING TOOL
摘要
申请公布号
SU848582(A1)
申请公布日期
1981.07.23
申请号
SU19782677194
申请日期
1978.10.25
申请人
MAKSIMENKO VLADIMIR V,SU
发明人
MAKSIMENKO VLADIMIR V,SU
分类号
E21B25/10;(IPC1-7):E21B25/10
主分类号
E21B25/10
代理机构
代理人
主权项
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