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Donald Lee Sawyers, Jr.
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Baltimore, MD, US
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last 30 patents
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Patent Grant
Long lasting thermoformable phosphorescent acrylic resin for castin...
Patent number
7,252,786
Issue date
Aug 7, 2007
Vistas Group International, Inc.
Jorge Leonardo Alfonso
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...