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经营范围
发明名称
Filter for preventing hair from becoming clogged in a drain
摘要
A filter for preventing hair from becoming clogged in a drain which comprises a flat annular strainer and a magnetic rim on the periphery of said flat annular strainer.
申请公布号
US7975323(B2)
申请公布日期
2011.07.12
申请号
US20080218611
申请日期
2008.07.16
申请人
DEES ETHEL J
发明人
DEES ETHEL J.
分类号
E03C1/26
主分类号
E03C1/26
代理机构
代理人
主权项
地址
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