Charles C. Matthews

📍 San Clemente, CA: #10 of 36 inventorsTop 30%

🗺 California: #2,144 of 10,592 inventorsTop 25%

Overall (1989): #125,981 of 140,708Top 90%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4824119	Back spelling card game	—	1989-04-25