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发明名称
摘要
申请公布号	DE2422471(C2)	申请公布日期	1982.11.25
申请号	DE19742422471	申请日期	1974.05.09
申请人	COOPER, DUANE H., DR., CHAMPAGNE, ILL., US;NIPPON COLUMBIA K.K., TOKYO, JP	发明人	COOPER, DUANE H., CHAMPAGNE, ILL., US;TAKAGI, TOSHIHIKO, KAWASAKI, KANAGAWA, JP
分类号	G11B20/00;H04S3/00;(IPC1-7):H04S3/00;G11B3/00	主分类号	G11B20/00
代理机构		代理人
主权项
地址

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