,申请号JP19740019523U-传众专利搜索

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发明名称
摘要
申请公布号	JPS5220294(Y2)	申请公布日期	1977.05.10
申请号	JP19740019523U	申请日期	1974.02.18
申请人		发明人
分类号	H04R17/00;(IPC1-7):H04R17/00	主分类号	H04R17/00
代理机构		代理人
主权项
地址

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