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发明名称
TRACKING CONTROL METHOD FOR OPTICAL PICKUP DEVICE
摘要
申请公布号
JPH04109434(A)
申请公布日期
1992.04.10
申请号
JP19900159935
申请日期
1990.06.20
申请人
RICOH CO LTD
发明人
MORIWAKI ISAMU;MIZUGUCHI HIROYUKI
分类号
G11B21/10;G11B7/085
主分类号
G11B21/10
代理机构
代理人
主权项
地址
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