发明名称 Smoke alarm for use with an electronic timing device
摘要 A device for sensing smoke and providing an indication upon the sensing of smoke is disclosed. A housing, being in the shape of a wrist watch, includes an electronic circuit that senses smoke and provides an indication to those in the vicinity of the device. This indication allows those in this vicinity to easily locate the device. The housing further includes the features of providing the time of day to a user.
申请公布号 US5243329(A) 申请公布日期 1993.09.07
申请号 US19910760012 申请日期 1991.09.13
申请人 HAPPER, JR., ROBERT L. 发明人 HAPPER, JR., ROBERT L.
分类号 G08B17/10 主分类号 G08B17/10
代理机构 代理人
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