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发明名称
ROTARY-PERCUSSIVE DEVICE
摘要
申请公布号
SU1659641(A1)
申请公布日期
1991.06.30
申请号
SU19894711856
申请日期
1989.06.29
申请人
INST GORNOGO DELA SO AN SSSR
发明人
PROKOPENKO ANATOLIJ I,SU;UGAROV GENNADIJ G,SU;TEREBENIN MIKHAIL A,SU
分类号
E21B6/04
主分类号
E21B6/04
代理机构
代理人
主权项
地址
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