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发明名称
HYDRAULIC IMPACT-ACTION DEVICE
摘要
申请公布号
SU1765382(A1)
申请公布日期
1992.09.30
申请号
SU19904857157
申请日期
1990.08.06
申请人
DO POLT INSTITUT
发明人
TIMOSHENKO GRIGORIJ M,SU;SELIVRA SERGEJ A,SU;YATSENKO ALEKSANDR F,SU;ROMANENKO ALEKSANDR I,SU
分类号
E21C37/24;B25D9/00
主分类号
E21C37/24
代理机构
代理人
主权项
地址
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