EH

Eric D. Hendry

EC English Electric Valve Co.: 2 patents #20 of 66Top 35%
Overall (All Time): #2,352,135 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4503354 Camera tubes — 1985-03-05
4298821 Electron tube with particle trap integral with envelope wall — 1981-11-03