发明名称 Drain cover
摘要 A drain cover adapted for engagement in a cavity above the drain aperture in the surface forming a pool or spa and below a top component. The top component features a substantially transparent center section which provides a view of a display component housed in a display cavity formed between the drain aperture and the center section of the top component. The display component is easily changed by removal of the top component, replacing the display component, and remounting the top component.
申请公布号 US7788743(B2) 申请公布日期 2010.09.07
申请号 US20050096689 申请日期 2005.03.31
申请人 MJELDE OLAF W;ARENS JR WADE H 发明人 MJELDE OLAF W.;ARENS, JR. WADE H.
分类号 E04H4/00 主分类号 E04H4/00
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