David W. Graf

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Bismarck, ND, US

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Patents Grantslast 30 patents

Information Patent Grant
Mini-excavator canopy
- Patent number D487100
- Issue date Feb 24, 2004
- Clark Equipment Company
- Thomas J. Tokach
- D15 - Machines not elsewhere specified
Information Patent Grant
Mini-excavator canopy
- Patent number D481398
- Issue date Oct 28, 2003
- Clark Equipment Company
- Thomas J. Tokach
- D15 - Machines not elsewhere specified