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发明名称
VIA DUCT
摘要
申请公布号
KR200156898(Y1)
申请公布日期
1999.09.01
申请号
KR19970000583U
申请日期
1997.01.17
申请人
SEHAN IND. CO., LTD.
发明人
KIM, KIL-JOONG
分类号
E01D1/00;(IPC1-7):E01D1/00
主分类号
E01D1/00
代理机构
代理人
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地址
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