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发明名称
FRESNEL LENS AND LED ILLUMINATING DEVICE USING IT
摘要
申请公布号
KR100804735(B1)
申请公布日期
2008.02.19
申请号
KR20060026651
申请日期
2006.03.23
申请人
发明人
分类号
G02B3/08;G02B3/00
主分类号
G02B3/08
代理机构
代理人
主权项
地址
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