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发明名称
Optical head using a reflection grating
摘要
申请公布号
US5036504(A)
申请公布日期
1991.07.30
申请号
US19880277735
申请日期
1988.11.30
申请人
NEC CORPORATION
发明人
ONO, YUZO;OHBA, AKITOMO;KIMURA, YASUO
分类号
G11B7/09;G11B7/135
主分类号
G11B7/09
代理机构
代理人
主权项
地址
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