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发明名称
RAIL TRACK CROSSING
摘要
申请公布号
SU1381225(A1)
申请公布日期
1988.03.15
申请号
SU19864071140
申请日期
1986.04.14
申请人
G PI PO PROEKTIROVANIYU ZAVODOV NA TRANSPORTE
发明人
KRAMNIK ILYA N,SU;KAVERINSKIJ VLADIMIR A,SU
分类号
E01B7/28
主分类号
E01B7/28
代理机构
代理人
主权项
地址
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