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Robert B. Bruce
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Burlington, CA, US
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last 30 patents
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Patent Grant
Gypsum board having improved flexibility, toughness, abuse resistan...
Patent number
6,800,361
Issue date
Oct 5, 2004
E. I. Du Pont de Nemours and Company
Robert B. Bruce
B28 - WORKING CEMENT, CLAY, OR STONE
Patents Applications
last 30 patents
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Patent Application
GYPSUM BOARD HAVING IMPROVED FLEXIBILITY, TOUGHNESS, ABUSE RESISTAN...
Publication number
20030232182
Publication date
Dec 18, 2003
Robert B. Bruce
B28 - WORKING CEMENT, CLAY, OR STONE