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发明名称
TUNNELING SHIELD
摘要
申请公布号
SU1668678(A1)
申请公布日期
1991.08.07
申请号
SU19894726630
申请日期
1989.08.02
申请人
INST UGLYA SO AN SSSR
发明人
ELLER ALEKSANDR F,SU;GORBUNOV VALERIJ F,SU;AKSENOV VLADIMIR V,SU;PUSHKINA NINA B,SU;SARUEV LEV A,SU;KRAUINSH PETR YA,SU
分类号
E21D9/11;E21D9/06;E21D11/10
主分类号
E21D9/11
代理机构
代理人
主权项
地址
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