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发明名称
YIELD ASSEMBLY OF MINE SUPPORT OF SPECIAL ROLLED SHAPE
摘要
申请公布号
SU1649100(A1)
申请公布日期
1991.05.15
申请号
SU19894695042
申请日期
1989.05.22
申请人
NI GORNORUDNYJ INSTITUT
发明人
LYSAKOVSKIJ VLADIMIR A,SU;VOLOSHCHENKO VLADIMIR P,SU;KOSTOGRYZ VASILIJ I,SU;PETIK VLADIMIR V,SU;ZHUPANENKO VIKTOR P,SU
分类号
E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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