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发明名称
METHOD OF SETTING ROOF BOLT
摘要
申请公布号
SU1601383(A1)
申请公布日期
1990.10.23
申请号
SU19884609991
申请日期
1988.11.29
申请人
STAKHANOVSKIJ KOMMUNARSKOGO GORNO-METALLURGICHESKOGO INSTITUTA
发明人
GARTSUEV EVGENIJ M,SU
分类号
E21D20/00
主分类号
E21D20/00
代理机构
代理人
主权项
地址
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