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发明名称
CONSTRUCTION OF A CEILING
摘要
申请公布号
KR910002421(Y1)
申请公布日期
1991.04.20
申请号
KR19880005688U
申请日期
1988.04.20
申请人
CHO, PYUNG-YONG
发明人
CHO, PYUNG-YONG
分类号
E04B9/22;(IPC1-7):E04B9/22
主分类号
E04B9/22
代理机构
代理人
主权项
地址
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