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经营范围
发明名称
MINING MACHINE
摘要
申请公布号
RU1809038(C)
申请公布日期
1993.04.15
申请号
SU19904861883
申请日期
1990.08.22
申请人
KRIVOKONEV IVAN K
发明人
KRIVOKONEV IVAN K
分类号
E21C27/00;E21C27/02;(IPC1-7):E21C27/00
主分类号
E21C27/00
代理机构
代理人
主权项
地址
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