FH

Fred A. Helvy

BT Burle Technologies: 1 patents #1 of 5Top 20%
📍 Hanover, PA: #1 of 10 inventorsTop 10%
🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%
Overall (1989): #114,771 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4855642 Focusing electrode structure for photomultiplier tubes Gilbert N. Butterwick 1989-08-08