Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329572 | Check-digit printing means | George J. Sundell | 1982-05-11 |
| 4236446 | Check-digit printing means | George J. Sundell | 1980-12-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329572 | Check-digit printing means | George J. Sundell | 1982-05-11 |
| 4236446 | Check-digit printing means | George J. Sundell | 1980-12-02 |