John J. Perrero

📍 Calumet, MI: #20 of 30 inventorsTop 70%

🗺 Michigan: #49,615 of 86,293 inventorsTop 60%

Overall (All Time): #3,855,297 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5131849	Teaching board apparatus	—	1992-07-21