DB

DuWayne L. Bertsch

TL Trw Limited: 1 patents #979 of 2,166Top 50%
📍 Amherst, OH: #90 of 144 inventorsTop 65%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,102,427 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4306137 Method and apparatus for conducting smut-free stud welding Thomas Shoup 1981-12-15