Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4377828 | Ticket transport | Charles L. Hayman, John B. Roes | 1983-03-22 |
| 4185730 | Magnetically encoded token and handling apparatus | John B. Roes | 1980-01-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4377828 | Ticket transport | Charles L. Hayman, John B. Roes | 1983-03-22 |
| 4185730 | Magnetically encoded token and handling apparatus | John B. Roes | 1980-01-29 |