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经营范围
发明名称
PIPELINE CONNECTOR IN MANHOLE
摘要
申请公布号
KR900011059(Y1)
申请公布日期
1990.12.14
申请号
KR19870007776U
申请日期
1987.05.20
申请人
LEE CHEOL-WOO
发明人
LEE CHEOL-WOO
分类号
E02D29/12;(IPC1-7):E02D29/12
主分类号
E02D29/12
代理机构
代理人
主权项
地址
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