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经营范围
发明名称
Chemical bottle adaptor
摘要
An adaptor to convert an ordinary plastic bottle of the kind in which pool chemicals are sold into a device for protecting a swimming pool skimmer against ice damage during the winter.
申请公布号
US5038949(A)
申请公布日期
1991.08.13
申请号
US19890340497
申请日期
1989.04.19
申请人
MAHON, FRANK
发明人
MAHON, FRANK
分类号
E04H4/12
主分类号
E04H4/12
代理机构
代理人
主权项
地址
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