,申请号JP19770084379-传众专利搜索

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法人/股东/高管

发明名称
摘要	PURPOSE:To perform excellent communication with a simple circuit constitution, by transmitting the tone signal fed from the opposing station back to it after passing through the signal and by performing various control.
申请公布号	JPS5645539(B2)	申请公布日期	1981.10.27
申请号	JP19770084379	申请日期	1977.07.13
申请人		发明人
分类号	H04Q9/12;H04B7/005;H04Q7/00;H04Q7/16;H04Q7/20;H04Q7/38	主分类号	H04Q9/12
代理机构		代理人
主权项
地址

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