发明名称 Bird Guard for a Swimming Pool Spa
摘要 An apparatus that protects swimming pools and spas from birds that typically land on or near the edge of a spa's spillway into a swimming pool and excrete waste on or near the edge of the spillway.
申请公布号 US2008092286(A1) 申请公布日期 2008.04.24
申请号 US20060552253 申请日期 2006.10.24
申请人 CHRISTMANN MARK A 发明人 CHRISTMANN MARK A.
分类号 E04H4/00 主分类号 E04H4/00
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