Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5012164 | Horizontal deflection and EHT generator circuit | John Butterfield, Stewart Marlow | 1991-04-30 |
| 4774439 | Horizontal deflection stage | John Butterfield | 1988-09-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5012164 | Horizontal deflection and EHT generator circuit | John Butterfield, Stewart Marlow | 1991-04-30 |
| 4774439 | Horizontal deflection stage | John Butterfield | 1988-09-27 |