发明授权
- 专利标题： Light switch cover plate with audio recording and playback feature
- 专利标题（中）： 光开关盖板带有录音和播放功能
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申请号： US09122721申请日： 1998-07-27
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公开(公告)号： US06404569B1公开(公告)日： 2002-06-11
- 发明人: David E. Bachschmid , Robert C. Smallwood
- 申请人： David E. Bachschmid , Robert C. Smallwood
- 主分类号： G11B3100
- IPC分类号： G11B3100
摘要：
A light switch cover plate having mechanism for recording and playing back an audio sample through a speaker when the light switch is turned either on or off. Several messages can be recorded and they can be played back serially or randomly.
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