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Occult blood test enhancer
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Patent number 6,875,614
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Issue date Apr 5, 2005
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Helena Laboratories, Corporation
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Philip A. Guadagno
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G01 - MEASURING TESTING
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Chromgen-reagent test system
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Patent number 5,702,913
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Issue date Dec 30, 1997
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Helena Laboratories Corporation
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Philip A. Guadagno
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G01 - MEASURING TESTING
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Electrophoresis plate
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Patent number 5,512,157
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Issue date Apr 30, 1996
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Helena Laboratories Corporation
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Philip A. Guadagno
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G01 - MEASURING TESTING
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