发明名称 Roof vent cover
摘要 A roof vent cover for spherical roof vents, made of hard vinyl construction, and two congruous pieces. The pieces cover the bulb and exterior shaft of the roof vent, and are affixed to one another by screws and wing nuts.
申请公布号 US2002124493(A1) 申请公布日期 2002.09.12
申请号 US20010681270 申请日期 2001.03.12
申请人 MAYO THOMAS;VERNON CHRIS 发明人 MAYO THOMAS;VERNON CHRIS
分类号 F24F7/02;F24F13/20;(IPC1-7):E04B7/18 主分类号 F24F7/02
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