Al ALLOY FOR HEAD DRUM OF DIGITAL AUDIO TAPE RECORDER,申请号KR1019870010675-传众专利搜索

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发明名称	Al ALLOY FOR HEAD DRUM OF DIGITAL AUDIO TAPE RECORDER
摘要
申请公布号	KR1019910006019(B1)	申请公布日期	1991.08.09
申请号	KR1019870010675	申请日期	1987.09.25
申请人		发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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