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经营范围
发明名称
FOCUSING SERVO CIRCUIT
摘要
申请公布号
JPH0312034(A)
申请公布日期
1991.01.21
申请号
JP19890144451
申请日期
1989.06.07
申请人
ALPINE ELECTRON INC
发明人
YOKOTA HACHIRO
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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