Diffraction element and optical pick-up apparatus having the same,申请号KR20050005474-传众专利搜索

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发明名称	Diffraction element and optical pick-up apparatus having the same
摘要
申请公布号	KR100754517(B1)	申请公布日期	2007.09.03
申请号	KR20050005474	申请日期	2005.01.20
申请人		发明人
分类号	G11B7/135	主分类号	G11B7/135
代理机构		代理人
主权项
地址

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