Roger R. Mitchell

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Joliet, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for controlling the position of the pivoting floor and st...
- Patent number 4,255,885
- Issue date Mar 17, 1981
- Caterpillar Tractor Co.
- Roger R. Mitchell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Extended life end bits for bulldozer blades
- Patent number 4,086,967
- Issue date May 2, 1978
- Caterpillar Tractor Co.
- Larry G. Eftefield
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Force transmitting connection
- Patent number 3,997,275
- Issue date Dec 14, 1976
- Caterpillar Tractor Co.
- Roger R. Mitchell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING