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发明名称
ENTRY-DRIVING MACHINE WORK-PERFORMING MEMBER
摘要
申请公布号
SU619645(A1)
申请公布日期
1978.08.15
申请号
SU19762429751
申请日期
1976.12.14
申请人
INST GEOTEKHNICHESKOI MEKHANI
发明人
POLUYANSKIJ STANISLAV A,SU;TRUSKOV IGOR V,SU;OSENNIJ VALENTIN YA,SU
分类号
E21C27/22;(IPC1-7):E21C27/22
主分类号
E21C27/22
代理机构
代理人
主权项
地址
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