David W. Graf

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Mandan, ND, US

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Patents Grantslast 30 patents

Information Patent Grant
Locking device for hydraulic attachment interface
- Patent number 7,690,880
- Issue date Apr 6, 2010
- Clark Equipment Company
- Russell A. Honeyman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
Locking device for hydraulic attachment interface
- Publication number 20070248445
- Publication date Oct 25, 2007
- Clark Equipment Company
- Russ A. Honeyman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING