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发明名称
APPARATUS FOR RECORDING ROCK MOVEMENTS
摘要
申请公布号
SU1747692(A1)
申请公布日期
1992.07.15
申请号
SU19904804737
申请日期
1990.03.22
申请人
VNII GORNOJ GEOMEKHANIKI MARK
发明人
USHAKOV VLADIMIR M,SU
分类号
E21C39/00
主分类号
E21C39/00
代理机构
代理人
主权项
地址
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