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发明名称
MINE SUPPORT PROP
摘要
申请公布号
SU1603012(A1)
申请公布日期
1990.10.30
申请号
SU19884405044
申请日期
1988.04.07
申请人
INST UGLYA SO AN SSSR
发明人
VERIN VLADIMIR S,SU;MIKHAJLOV GENNADIJ A,SU;DENISKIN NIKOLAJ F,SU;FEDOROV VASILIJ N,SU
分类号
E21D15/44
主分类号
E21D15/44
代理机构
代理人
主权项
地址
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