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发明名称
DEVICE FOR TURNOUTS AND TRACK SPANS DRAINAGE
摘要
申请公布号
CS247353(B1)
申请公布日期
1986.12.18
申请号
CS19810006039
申请日期
1981.08.12
申请人
NEMEC,ROLAND,CS
发明人
NEMEC,ROLAND,CS
分类号
E01B19/00;(IPC1-7):E01B19/00
主分类号
E01B19/00
代理机构
代理人
主权项
地址
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