John E. Fortuna

KM Knape & Vogt Manufacturing: 1 patents #25 of 40Top 65%

📍 Cedar Springs, MI: #28 of 47 inventorsTop 60%

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

Overall (All Time): #4,081,049 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4243277	Ball bearing	—	1981-01-06