David J. Trettin

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Charlotte, NC, US

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Patents Grantslast 30 patents

Information 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
Information 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