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发明名称
PLATE PROTECTING RAILWAY TRACK SUBGRADE AGAINST CONTAMINATION
摘要
申请公布号
PL58955(Y1)
申请公布日期
2001.12.31
申请号
PL19960105840U
申请日期
1996.12.24
申请人
KACZMAREK ROMAN
发明人
KACZMAREK ROMAN
分类号
E01B3/40;E01B19/00;(IPC1-7):E01B19/00
主分类号
E01B3/40
代理机构
代理人
主权项
地址
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