Charles W. Harpold

📍 Grand Rapids, MI: #4 of 44 inventorsTop 10%

🗺 Michigan: #416 of 1,972 inventorsTop 25%

Overall (1982): #72,609 of 81,411Top 90%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4351238	Method for screen printing	—	1982-09-28