DRUM UNIT WITH CURVED CONTROL SIGNAL HEAD SURFACE,申请号US19910675160-传众专利搜索

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法人/股东/高管

发明名称	DRUM UNIT WITH CURVED CONTROL SIGNAL HEAD SURFACE
摘要
申请公布号	US5140483(A)	申请公布日期	1992.08.18
申请号	US19910675160	申请日期	1991.03.26
申请人	SONY CORPORATION	发明人	KOGA, HIROHISA;KOBAYASHI, KENJI
分类号	G11B5/48;G11B15/467;G11B15/61	主分类号	G11B5/48
代理机构		代理人
主权项
地址

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