发明名称 Remote-controlled message sign
摘要 A remote-controlled message sign in controlled by a pager. The pager receives radio signals from a paging service and provides output signals in response to the radio signals. The output signals of the pager are used to control one or more drive motors. Each drive motor moves a multiple-position message device to a position in response to the output signal of the pager.
申请公布号 US5061921(A) 申请公布日期 1991.10.29
申请号 US19890328736 申请日期 1989.03.23
申请人 WHITE WAY SIGN COMPANY 发明人 LESKO, DARRYL S.;CLEM, DENNIS J.
分类号 G08B5/22;G09F11/23;G09F11/26 主分类号 G08B5/22
代理机构 代理人
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