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发明名称
METHOD OF EXPANDING RAILROAD BED INTHE EXISTING RAILWAY BRIDGE AND A WATER JET APPARATUS OF CUTTING BALLAST PROTECTION
摘要
申请公布号
KR100627699(B1)
申请公布日期
2006.09.18
申请号
KR20060005606
申请日期
2006.01.19
申请人
KIM, WOON KYUM
发明人
KIM, WOON KYUM
分类号
E01B31/00;E01B31/04
主分类号
E01B31/00
代理机构
代理人
主权项
地址
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