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David J. Trettin
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Charlotte, NC, US
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last 30 patents
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Patent Grant
Display package for a tool bit
Patent number
D497800
Issue date
Nov 2, 2004
Irwin Industrial Tool Company
David J. Trettin
D09 - Packages and containers for goods
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Patent Grant
Display package for a tool bit
Patent number
D497105
Issue date
Oct 12, 2004
Irwin Industrial Tool Company
David J. Trettin
D09 - Packages and containers for goods
Information
Patent Grant
Display package for a tool bit
Patent number
D495596
Issue date
Sep 7, 2004
Irwin Industrial Tool Company
David J. Trettin
D09 - Packages and containers for goods