009-2230
- 编号
- 009-2230
- 类别
- 09类 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。
