Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904898 | Monochrome cathode ray tube electron gun with high voltage electrode lens | Thomas W. Penird, Charles H. Rehkopf, Donald L. Say | 1990-02-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904898 | Monochrome cathode ray tube electron gun with high voltage electrode lens | Thomas W. Penird, Charles H. Rehkopf, Donald L. Say | 1990-02-27 |