发明名称
摘要 PURPOSE:To certainly detect the acception of a coin and to forcibly shut off a circuit in case the coin to be received is not accepted but is retained over predetermined time in a coin insertion type telephone for talking by inserting one coin.
申请公布号 JPS5426447(B2) 申请公布日期 1979.09.04
申请号 JP19750075532 申请日期 1975.06.23
申请人 发明人
分类号 H04M17/00;H04M17/02 主分类号 H04M17/00
代理机构 代理人
主权项
地址