009-2230

编号
009-2230
类别
09科学仪器
英文名称
Telephone call screening and blocking device consisting of a microprocessor that uses the telephone cord between the telephone and wall jack for the purpose of blocking unwanted calls
中文名称
电话筛选和拦截设备,由一个微处理器组成,利用电话线连接电话和墙壁插座,用于拦截骚扰电话。
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