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Duane W. Sampson
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Mesa, AZ, US
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last 30 patents
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Patent Grant
Method of cleaning scale and stains in water systems and related eq...
Patent number
5,492,629
Issue date
Feb 20, 1996
H.E.R.C. Products Incorporated
Jerome H. Ludwig
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE