发明名称 Air register filtering system
摘要 An air register filtering system for mounting to an existing air register thereby removing particles of dust, pollen and other debris that do not get trapped by a furnace filter before being blown into the room providing cleaner air for the user and reducing the need for dusting. The system includes an air register a filter retaining structure engaging the existing air register, and a filter secured within the filter retaining structure.
申请公布号 US5947815(A) 申请公布日期 1999.09.07
申请号 US19960634591 申请日期 1996.04.18
申请人 DANFORTH, DOUG A. 发明人 DANFORTH, DOUG A.
分类号 F24F13/28;(IPC1-7):F24F13/28 主分类号 F24F13/28
代理机构 代理人
主权项
地址