Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424453 | Key-operated device for saving electrical energy | Nigel P. Balls | 1984-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424453 | Key-operated device for saving electrical energy | Nigel P. Balls | 1984-01-03 |