DB

Donald L. Bartley

KE Kennametal: 3 patents #233 of 844Top 30%
📍 Willoughby, OH: #77 of 230 inventorsTop 35%
🗺 Ohio: #23,384 of 73,341 inventorsTop 35%
Overall (All Time): #1,670,873 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4840360 Expanding mandrel — 1989-06-20
4835878 Stable measuring platform — 1989-06-06
4229127 Boring bar — 1980-10-21