发明名称 Door identification system
摘要 A new DOOR IDENTIFICATION SYSTEM for ALLOWING HOMEOWNERS TO RECEIVE AND VERIFY IDENTIFICATION FOR A PERSON KNOCKING ON THEIR DOOR. The inventive device includes an interior door sleeve positioned within a hole through a door. A sliding tray is slidably received within the interior door sleeve. The sliding tray includes an outwardly sliding portion and an inwardly sliding portion with a hinge disposed therebetween. A safety clip is secured to and extends upwardly from a front wall of the inwardly sliding portion of the sliding tray.
申请公布号 US5897054(A) 申请公布日期 1999.04.27
申请号 US19970910518 申请日期 1997.08.07
申请人 FIRTH, MICHAEL JOHN 发明人 FIRTH, MICHAEL JOHN
分类号 E06B7/32;(IPC1-7):B65G11/04 主分类号 E06B7/32
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