JD

John B. Davidson

R( Roberts Tool International (Usa): 1 patents #2 of 3Top 70%
📍 Chicago, IL: #103 of 426 inventorsTop 25%
🗺 Illinois: #1,118 of 4,656 inventorsTop 25%
Overall (1997): #129,851 of 185,788Top 70%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5660491 Universal joint for torque transmitting tools Peter M. Roberts 1997-08-26