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经营范围
发明名称
PERCUSSIVE DEVICE
摘要
申请公布号
RU2042812(C1)
申请公布日期
1995.08.27
申请号
SU19925029401
申请日期
1992.02.28
申请人
INSTITUT GIDRODINAMIKI IM.M.A.LAVRENTEVA SO RAN
发明人
FADEEV PETR YA;FADEEV VLADIMIR YA
分类号
E21C37/00;E01C19/05;(IPC1-7):E21C3/20
主分类号
E21C37/00
代理机构
代理人
主权项
地址
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