,申请号DE19722249039-传众专利搜索

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发明名称
摘要
申请公布号	DE2249039(C2)	申请公布日期	1986.07.17
申请号	DE19722249039	申请日期	1972.10.06
申请人	NATIONAL RESEARCH DEVELOPMENT CORP., LONDON, GB	发明人	COOPER, DUANE H., CHAMPAIGN, ILL., US
分类号	G11B20/00;H04S3/00;H04S3/02;(IPC1-7):H04S3/02	主分类号	G11B20/00
代理机构		代理人
主权项
地址

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