发明名称 Door safety device
摘要 A safety system for a door-to-door jamb interface is provided. The safety interface uses several slidably joined members which are coupled to the door and its associated door jamb to prevent interaction between a user and the door-to-door jamb interface.
申请公布号 US2008190029(A1) 申请公布日期 2008.08.14
申请号 US20080069931 申请日期 2008.02.14
申请人 JOHNSON MARK A 发明人 JOHNSON MARK A.
分类号 E06B7/36 主分类号 E06B7/36
代理机构 代理人
主权项
地址