DISCO DE VERIFICACAO,申请号BR19909002641-传众专利搜索

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发明名称	DISCO DE VERIFICACAO
摘要
申请公布号	BR9002641(A)	申请公布日期	1991.08.20
申请号	BR19909002641	申请日期	1990.06.04
申请人	SONY CORPORATION	发明人	NORIYUKI ISHIMURA;KATSUJI YOKOYAMA
分类号	G11B20/18;(IPC1-7):G11B5/82;G11B19/02	主分类号	G11B20/18
代理机构		代理人
主权项
地址

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