FOCUS SERVO DEVICE,申请号JP19890031647-传众专利搜索

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发明名称	FOCUS SERVO DEVICE
摘要
申请公布号	JPH02210621(A)	申请公布日期	1990.08.22
申请号	JP19890031647	申请日期	1989.02.10
申请人	PIONEER ELECTRON CORP	发明人	SAKATA HARUYASU
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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