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Polymeric polyelectrolytes
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Patent number 4,401,795
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Issue date Aug 30, 1983
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NL Industries Inc.
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Daniel F. Herman
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Opacifying polymeric particle and uses
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Patent number 4,391,928
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Issue date Jul 5, 1983
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NL Industries, Inc.
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Daniel F. Herman
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Polymeric polyelectrolytes
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Patent number 4,342,858
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Issue date Aug 3, 1982
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NL Industries, Inc.
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Daniel F. Herman
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Water-tight electric cable
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Patent number 4,308,416
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Issue date Dec 29, 1981
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NL Industries, Inc.
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Daniel F. Herman
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H01 - BASIC ELECTRIC ELEMENTS
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