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发明名称
DEVICE PREVENTING BURSTING OF PIPE BY FREEZING
摘要
申请公布号
KR920004700(Y1)
申请公布日期
1992.07.13
申请号
KR19890010709U
申请日期
1989.07.21
申请人
PARK, JONG - SU
发明人
KWON, YONG - SU
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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