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经营范围
发明名称
DEVICE PREVENTING BURSTING OF PIPE BY FREEZING
摘要
申请公布号
KR910005039(Y1)
申请公布日期
1991.07.15
申请号
KR19880001436U
申请日期
1988.02.08
申请人
CHANG NAM-SOO
发明人
CHANG NAM-SOO
分类号
E03B7/10;(IPC1-7):E03B7/10
主分类号
E03B7/10
代理机构
代理人
主权项
地址
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