RS

Roy Butler, Sr.

📍 Tempe, AZ: #1,081 of 2,648 inventorsTop 45%
🗺 Arizona: #13,050 of 32,909 inventorsTop 40%
Overall (All Time): #2,216,638 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6427347 Line transfer instrument 2002-08-06
4301699 Drill actuating mechanism 1981-11-24