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发明名称
AUTOMATIC FOCUS CONTROL SYSTEM FOR OPTICAL DISK DEVICE
摘要
申请公布号
JPS643823(A)
申请公布日期
1989.01.09
申请号
JP19870156556
申请日期
1987.06.25
申请人
HITACHI LTD
发明人
YUASA MIKIO;MIZOGAMI TAKUYA
分类号
G11B7/085
主分类号
G11B7/085
代理机构
代理人
主权项
地址
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