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发明名称
POWERED ROOF SUPPORT SECTION
摘要
申请公布号
SU688637(A1)
申请公布日期
1979.09.30
申请号
SU19782612037
申请日期
1978.05.04
申请人
DO G PK EXI KOMPLEKSNOJ MEKH SHAKHT
发明人
ARUTYUNYAN SUREN M,SU;GAJSINOVICH ALEKSANDR A,SU;GEJER VALERIJ V,SU;GORDEEV ALEKSANDR P,SU;LITVINOV GEORGIJ A,SU
分类号
E21D23/00;(IPC1-7):E21D23/00
主分类号
E21D23/00
代理机构
代理人
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