Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691667 | RF radiation absorbing material disposed between the cathode and anode of an electron beam tube | Alan H. Pickering, Geoffrey John Rowlands, Roy Heppinstall, Geoffrey Clayworth | 1997-11-25 |