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发明名称
BACKFILLING MATERIAL
摘要
申请公布号
SU926319(A1)
申请公布日期
1982.05.07
申请号
SU19802917758
申请日期
1980.04.30
申请人
VNII ORGANIZATSII MEKH SHAKHTNOGO STROITELSTVA
发明人
GREKOV ALEKSANDR G,SU;KOSTYUSHKO VIKTOR T,SU;ALFEROV BORIS V,SU;BERNSHTEJN SLAVA A,SU;CHERKASOVA IRINA I,SU;DRUTSKO VITALIJ P,SU
分类号
E21D21/00;(IPC1-7):E21D21/00
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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