,申请号JP19770156012U-传众专利搜索

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发明名称
摘要
申请公布号	JPS5654713(Y2)	申请公布日期	1981.12.19
申请号	JP19770156012U	申请日期	1977.11.19
申请人		发明人
分类号	H04R7/02;B32B15/08;G10K13/00;H04R7/10;H04R7/12;(IPC1-7):H04R7/12	主分类号	H04R7/02
代理机构		代理人
主权项
地址

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