Donald W. Appelgren

📍 Brighton, MI: #317 of 809 inventorsTop 40%

🗺 Michigan: #35,034 of 86,293 inventorsTop 45%

Overall (All Time): #2,321,303 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4896518	Access prevention device and method of manufacture	—	1990-01-30
4257195	Deburring and chamfering fixture	—	1981-03-24