发明名称 Telephone visual signaling device
摘要 A telephone visual signaling device is provided which consists of a telephone connected to an incoming signal line and a mechanism for producing an identifiable beam of light when the telephone receives a telephone call on the incoming signal line.
申请公布号 US5404399(A) 申请公布日期 1995.04.04
申请号 US19920959422 申请日期 1992.10.13
申请人 FINAMORE, SANDRO 发明人 FINAMORE, SANDRO
分类号 H04M1/22;H04M1/82;H04M19/04;(IPC1-7):H04M1/00 主分类号 H04M1/22
代理机构 代理人
主权项
地址