APPARATUS FOR DETECTING ASTIGMATISM OF OPTICAL DISK HEAD,申请号JP19900100600-传众专利搜索

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发明名称	APPARATUS FOR DETECTING ASTIGMATISM OF OPTICAL DISK HEAD
摘要
申请公布号	JPH03296643(A)	申请公布日期	1991.12.27
申请号	JP19900100600	申请日期	1990.04.17
申请人	NEC CORP	发明人	YOSHIKAWA TAMAYASU
分类号	G01M11/02;G11B7/22	主分类号	G01M11/02
代理机构		代理人
主权项
地址

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