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经营范围
发明名称
FIXING MECHANISM FOR CORES LIFTING
摘要
申请公布号
CS259037(B1)
申请公布日期
1988.09.16
申请号
CS19850000104
申请日期
1985.01.04
申请人
NENKOV,NIKOLAJ D.,BG;PETROV,IVAN B.,BG;PEEV,STOJKO P.,BG
发明人
NENKOV,NIKOLAJ D.,BG;PETROV,IVAN B.,BG;PEEV,STOJKO P.,BG
分类号
E21B25/02;(IPC1-7):E21B25/02
主分类号
E21B25/02
代理机构
代理人
主权项
地址
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