Richard J. Erwin

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Indianola, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Road position indication for motor grader snow plow
- Patent number 8,887,412
- Issue date Nov 18, 2014
- Deere & Company
- Brian Christopher Proeber
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
ROAD POSITION INDICATION FOR MOTOR GRADER SNOW PLOW
- Publication number 20120246977
- Publication date Oct 4, 2012
- Deere & Company
- Brian Christopher Proeber
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING