发明名称 Battery-containing crown for wristwatches
摘要 A voltage source is arranged within the stem control crown of a timekeeping watch. The crown is designed similar to a knob shell and forms a component of the electric circuit of the watch. This specific battery arrangement allows an easy exchange of batteries, even by unskilled persons, and makes furthermore feasible, a more compact arrangement and miniaturization of the individual watch components.
申请公布号 US4241440(A) 申请公布日期 1980.12.23
申请号 US19790006211 申请日期 1979.01.24
申请人 GEBRUDER JUNGHANS GMBH 发明人 KING, JOSEF
分类号 G04C10/00;(IPC1-7):G04B1/00 主分类号 G04C10/00
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