Donald William Ertmer

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Lodi, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic engine speed control system for grass mowing machine
- Patent number 7,669,580
- Issue date Mar 2, 2010
- Deere & Company
- Carl Steven Silbernagel
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
ELECTRONIC ENGINE SPEED CONTROL SYSTEM FOR GRASS MOWING MACHINE
- Publication number 20090235627
- Publication date Sep 24, 2009
- Carl Steven Silbernagel
- B60 - VEHICLES IN GENERAL