John D. Tracey

📍 Ottumwa, IA: #89 of 143 inventorsTop 65%

🗺 Iowa: #8,735 of 15,303 inventorsTop 60%

Overall (All Time): #3,774,931 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5431391	Golfer's putting aid	—	1995-07-11