Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209513 | Method for preventing counterfeiting of sales receipts | Michael A. Repp | 1993-05-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209513 | Method for preventing counterfeiting of sales receipts | Michael A. Repp | 1993-05-11 |