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经营范围
发明名称
RAIL TRACK
摘要
申请公布号
SU1745804(A1)
申请公布日期
1992.07.07
申请号
SU19904839853
申请日期
1990.04.06
申请人
PENZENSKIJ INZH-STR INSTITUT
发明人
NEZHDANOV KIRILL K,SU;NEZHDANOV SERGEJ K,SU
分类号
E01B23/10
主分类号
E01B23/10
代理机构
代理人
主权项
地址
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