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经营范围
发明名称
RAILWAY TRACK
摘要
申请公布号
SU712472(A1)
申请公布日期
1980.01.30
申请号
SU19772452314
申请日期
1977.02.14
申请人
VNII ZHELEZNODOROZHNOGO TRANSPORTA
发明人
KRAVCHENKO NIKOLAJ D,SU;BARABOSHIN VIKTOR F,SU;DEMIDOV VITALIJ P,SU
分类号
E01B2/00;E01B9/48;(IPC1-7):E01B2/00
主分类号
E01B2/00
代理机构
代理人
主权项
地址
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