RE

Roger B. Ela

WG Walker Magnetics Group: 2 patents #2 of 10Top 20%
🗺 Massachusetts: #33,482 of 88,656 inventorsTop 40%
Overall (All Time): #1,678,198 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4633361 Chuck control for a workpiece holding electromagnet Dominic F. Pignataro 1986-12-30
4600964 Lifting magnet system Paul H. Guerin 1986-07-15
4370693 Demagnetizing apparatus for a workpiece holding electromagnet Donald C. McDonald, Dominic F. Pignataro 1983-01-25