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Andrew D. Screptock
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Rossford, OH, US
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last 30 patents
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Patent Grant
Apparatus and method for treating water in a water supply system
Patent number
5,979,478
Issue date
Nov 9, 1999
Andrew D. Screptock
G05 - CONTROLLING REGULATING
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Patent Grant
Apparatus for preventing or eliminating zebra mussel infestation of...
Patent number
5,520,821
Issue date
May 28, 1996
Andrew D. Screptock
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE