发明名称 Electric timer with a projector
摘要 An electric timer with a projector comprising a common electric timer, a vaccum fluorescent display connected with the timer to display time, and a projector including a speculum and a convex lens, the speculum reflecting the time displayed in the vaccum fluorescent display, the convex lens magnifying and projecting the reflected time on a ceiling or a wall to be easily seen.
申请公布号 US5260919(A) 申请公布日期 1993.11.09
申请号 US19920880023 申请日期 1992.05.08
申请人 TSAI, CHING-SHYN 发明人 TSAI, CHING-SHYN
分类号 G04B19/34;(IPC1-7):G04B19/00 主分类号 G04B19/34
代理机构 代理人
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