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发明名称
DRAIN PIPE AND TUNNEL STRUCTURE FOR ANTI-FREEZING USING THE SAME
摘要
申请公布号
KR200191475(Y1)
申请公布日期
2000.08.16
申请号
KR20000006443U
申请日期
2000.03.08
申请人
JUNG-IL ENGINEERING CO., LTD.;KIM, YOUN CHAL
发明人
KIM, YOUN CHAL;SONG, KEE DEOK
分类号
E21F16/02;(IPC1-7):E21F16/02
主分类号
E21F16/02
代理机构
代理人
主权项
地址
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