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发明名称
ENTRY-DRIVING MACHINE WORK-PERFORMING MEMBER
摘要
申请公布号
SU621872(A1)
申请公布日期
1978.08.30
申请号
SU19762384596
申请日期
1976.07.12
申请人
DONOV PAVEL ANDREEVICH,SU
发明人
DONOV PAVEL ANDREEVICH,SU
分类号
E21C27/24;(IPC1-7):E21C27/24
主分类号
E21C27/24
代理机构
代理人
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地址
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