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Electrochemical monitoring
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Patent number 4,263,104
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Issue date Apr 21, 1981
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Orion Research Incorporated
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Albert A. Diggens
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G01 - MEASURING TESTING
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Method of adjusting pH
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Patent number 4,251,218
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Issue date Feb 17, 1981
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Orion Research Incorporated
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Albert A. Diggens
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G01 - MEASURING TESTING
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Method of adjusting pH
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Patent number 4,131,428
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Issue date Dec 26, 1978
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Orion Research Incorporated
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Albert A. Diggens
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G01 - MEASURING TESTING
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Total residual chlorine
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Patent number 4,049,382
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Issue date Sep 20, 1977
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Orion Research Incorporated
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James W. Ross
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G01 - MEASURING TESTING