Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854146 | Security device and method | Roy S. Jefferies, Hugh Trevor-Jones | 1989-08-08 |
| 4831554 | Postage meter message printing system | Anthony Storace | 1989-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854146 | Security device and method | Roy S. Jefferies, Hugh Trevor-Jones | 1989-08-08 |
| 4831554 | Postage meter message printing system | Anthony Storace | 1989-05-16 |