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发明名称
METHOD AND DEVICE FOR CLEANING RAILTRACK GROOVES
摘要
申请公布号
KR20000069553(A)
申请公布日期
2000.11.25
申请号
KR1019997005494
申请日期
1999.06.18
申请人
发明人
分类号
E01H8/12
主分类号
E01H8/12
代理机构
代理人
主权项
地址
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