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经营范围
发明名称
DETECTING SYSTEM FOR MOVING QUANTITY OF LIGHT BEAM
摘要
申请公布号
JPH0388133(A)
申请公布日期
1991.04.12
申请号
JP19890223000
申请日期
1989.08.31
申请人
NEC CORP
发明人
YUKIMURA KAZUHISA
分类号
G11B7/09
主分类号
G11B7/09
代理机构
代理人
主权项
地址
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