Patent US 4954745A
| Patent number | US 4954745A (click link for details and documents via Google Patents) |
|---|---|
| Title | Cathode structure |
| Inventors | Bernard K. Vancil |
| Company | Tektronix Inc |
| Filing date | 1989-03-22 |
| Grant date | 1990-09-04 |
| Patent number | US 4954745A (click link for details and documents via Google Patents) |
|---|---|
| Title | Cathode structure |
| Inventors | Bernard K. Vancil |
| Company | Tektronix Inc |
| Filing date | 1989-03-22 |
| Grant date | 1990-09-04 |