Donald R. Mast

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Decatur, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Motor grader blade retention system
- Patent number 6,585,059
- Issue date Jul 1, 2003
- Caterpillar Inc.
- David R. Michael
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Locking mechanism for movable vehicle members
- Patent number 4,132,290
- Issue date Jan 2, 1979
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
Motor grader blade retention system
- Publication number 20030042029
- Publication date Mar 6, 2003
- Caterpillar Inc.
- David R. Michael
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING