Device for removing stains from swimming pool walls and concrete and the method of making the same
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United States of America Patent
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-
Jan 30, 2001
Grant Date -
N/A
app pub date -
Jan 13, 1999
filing date -
Jun 4, 1996
priority date (Note) -
In Force
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Abstract
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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Cited Art Landscape
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