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发明名称
RAILWAY LINE CROSSING, RAILWAY LINE CROSSING PLATE AND METHOD FOR EXECUTING RAILWAY LINE CROSSING
摘要
申请公布号
PL365618(A1)
申请公布日期
2005.09.05
申请号
PL20040365618
申请日期
2004.02.26
申请人
PREFA SP.Z OO.
发明人
LETKI KAZIMIERZ
分类号
E01C9/04
主分类号
E01C9/04
代理机构
代理人
主权项
地址
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