,申请号FR19740034382-传众专利搜索

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发明名称
摘要
申请公布号	FR2247859(B1)	申请公布日期	1978.10.13
申请号	FR19740034382	申请日期	1974.10.11
申请人	SONY CORP	发明人
分类号	G04C3/00;G04C23/00;G04G13/02;H01H13/54;(IPC1-7):H04B1/16;H03J5/24	主分类号	G04C3/00
代理机构		代理人
主权项
地址

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