Donald W. Pennertz

📍 Alexandria, MN: #74 of 148 inventorsTop 50%

🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%

Overall (All Time): #4,048,593 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4373297	Deburring machine	Ritchie J. Burkey	1983-02-15