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Ray D. Lotts
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Cincinnati, OH, US
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last 30 patents
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Patent Grant
Article for maintaining more even concentrations of bleach in a pas...
Patent number
4,729,880
Issue date
Mar 8, 1988
The Procter & Gamble Company
Robert S. Dirksing
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE