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发明名称
HOLE-BRIQUET AND BOLER FOR HOT WATER
摘要
申请公布号
KR1019900004938(B1)
申请公布日期
1990.07.12
申请号
KR1019870003236
申请日期
1987.04.06
申请人
发明人
分类号
主分类号
代理机构
代理人
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