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Hamilton Sean Michael Whitney
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Cornelius, NC, US
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last 30 patents
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Patent Grant
Chalk line device
Patent number
7,681,826
Issue date
Mar 23, 2010
Irwin Industrial Tool Company
Hamilton Sean Michael Whitney
B44 - DECORATIVE ARTS
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Patent Grant
Chalk line device
Patent number
7,311,283
Issue date
Dec 25, 2007
Irwin Industrial Tool Company
Hamilton Sean Michael Whitney
B44 - DECORATIVE ARTS