发明授权
- 专利标题: Key telephone system
- 专利标题(中): 关键电话系统
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申请号: US55245申请日: 1987-05-28
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公开(公告)号: US4782514A公开(公告)日: 1988-11-01
- 发明人: Hironobu Oshikata , Hiroshi Fukushima , Teruo Matsufuji
- 申请人: Hironobu Oshikata , Hiroshi Fukushima , Teruo Matsufuji
- 申请人地址: JPX Tokyo
- 专利权人: Iwatsu Electric Co., Ltd.
- 当前专利权人: Iwatsu Electric Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX61-129143 19860605
- 主分类号: H04M1/00
- IPC分类号: H04M1/00 ; H04M3/00 ; H04M9/00 ; H04Q3/58
摘要:
A key telephone system comprising a key service unit and key telephone sets is configured by the present invention so that system data are registered in an IC card and the system data so registered are fed to the key service unit by the insertion of the IC card in the key service unit.
公开/授权文献
- USD391548S Lamp socket 公开/授权日:1998-03-03