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发明名称
Bulb exchanging apparatus of the ceiling
摘要
申请公布号
KR20140005986(U)
申请公布日期
2014.12.01
申请号
KR20130003975U
申请日期
2013.05.21
申请人
发明人
分类号
F21V15/04;F21V17/10
主分类号
F21V15/04
代理机构
代理人
主权项
地址
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