发明名称 Solar powered sign
摘要 The present invention relates to an improved solar powered sign including one or more solar panels used to charge batteries which power various components of the sign. The sign may include a rotary display which is electrically powered and may also include a lamp. The sign may be mounted on a base facilitating easy transport.
申请公布号 US4989124(A) 申请公布日期 1991.01.29
申请号 US19890396352 申请日期 1989.08.21
申请人 SHAPPELL, THOMAS E. 发明人 SHAPPELL, THOMAS E.
分类号 G09F19/02 主分类号 G09F19/02
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