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发明名称
OPTICAL HEAD POSITIONING CONTROLLER
摘要
申请公布号
JPH02177181(A)
申请公布日期
1990.07.10
申请号
JP19880332994
申请日期
1988.12.28
申请人
NEC CORP
发明人
HARADA TOSHIHISA
分类号
G11B7/085;G11B21/08
主分类号
G11B7/085
代理机构
代理人
主权项
地址
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