Judy A. Duke

📍 Gillespie, IL: #2 of 3 inventorsTop 70%

🗺 Illinois: #48,934 of 84,256 inventorsTop 60%

Overall (All Time): #3,721,394 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5653305	Self-propelled step ladder	—	1997-08-05