发明名称 |
Device for removing stains from swimming pool walls and concrete and the method of making the same |
摘要 |
A cleaning tool for cleaning the walls of a swimming pool or other concrete structures. Two different sized aggregate or abrasives are combined with a binder to provide an improved cleaning device. The binder and the aggregates are matched so as to wear at substantially identical rates.
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申请公布号 |
US6180588(B1) |
申请公布日期 |
2001.01.30 |
申请号 |
US19990229471 |
申请日期 |
1999.01.13 |
申请人 |
TRACEY DALTON |
发明人 |
WALTERS ROY J. |
分类号 |
A01K61/00;A47L13/10;B08B1/00;B24D15/00;E04H4/16;(IPC1-7):C11D3/00;C11D3/08;C11D3/18 |
主分类号 |
A01K61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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