发明名称 Personal protection system
摘要 A personal protection system is provided, which consists of a band to be worn around a wrist of a person. A first mechanism is for producing an audio signal and is disposed in the band. A second mechanism is for powering the first audio signal producing mechanism and is disposed in the band. A third mechanism is for manually activating the second powering mechanism and is disposed in the band. A fourth mechanism is for keeping the band closed around the wrist of the person and is disposed in the band. A fifth mechanism is for manually deactivating the third manually activating mechanism and for opening the fourth band closing mechanism simultaneously.
申请公布号 US5235322(A) 申请公布日期 1993.08.10
申请号 US19910748820 申请日期 1991.08.22
申请人 OBYSOVSKY, MARTIN;SPECTOR, GEORGE 发明人 OBYSOVSKY, MARTIN;SPECTOR, GEORGE
分类号 G08B21/02 主分类号 G08B21/02
代理机构 代理人
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