Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4752965 | Sign verification | Peter C. Pugsley | 1988-06-21 |
| 4680801 | Sign verification | Harry J. C. Etherington, Paul C. Joslin | 1987-07-14 |
| 4629874 | Prepayment metering system | Peter C. Pugsley | 1986-12-16 |