William R. Simpson

📍 Saline, MI: #5 of 24 inventorsTop 25%

🗺 Michigan: #1,023 of 4,492 inventorsTop 25%

Overall (1997): #59,004 of 185,788Top 35%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5605335	Dart game apparatus	—	1997-02-25