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发明名称
HYDRAULIC PROP
摘要
申请公布号
RU1789714(C)
申请公布日期
1993.01.23
申请号
SU19874354063
申请日期
1987.12.31
申请人
INST GORNOGO DELA SO AN SSSR
发明人
KLISHIN VLADIMIR I,SU;SHCHERBAKOV VIKTOR A,SU
分类号
E21D15/44
主分类号
E21D15/44
代理机构
代理人
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地址
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