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发明名称
The Method of optical device for dust protection housing Front glass
摘要
申请公布号
KR20090002830(U)
申请公布日期
2009.03.23
申请号
KR20070015518U
申请日期
2007.09.18
申请人
发明人
分类号
G03B21/00;G03B21/04
主分类号
G03B21/00
代理机构
代理人
主权项
地址
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