发明名称 Electronic floor display cleaning system and protective cover
摘要 Embodiments of the present invention relate to an electronic display associated with a floor. The electronic display is provided with a sturdy protective cover to prevent damage to the display due to foot traffic or other factors. The protective cover in turn is provided with a device for at least one of preventing damage to the protective cover and for removing dirt from over the electronic display that may obscure the display.
申请公布号 US2003177679(A1) 申请公布日期 2003.09.25
申请号 US20030373191 申请日期 2003.02.26
申请人 BLUM RONALD D.;THIBODEAU JOSEPH;KOKONASKI WILLIAM 发明人 BLUM RONALD D.;THIBODEAU JOSEPH;KOKONASKI WILLIAM
分类号 A47L23/22;A47L23/26;G09F19/20;G09F19/22;(IPC1-7):G09F7/00 主分类号 A47L23/22
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