Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4227683 | Stack height sensor and elevator control for a continuous forms refolder | Charles W. Spangler | 1980-10-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4227683 | Stack height sensor and elevator control for a continuous forms refolder | Charles W. Spangler | 1980-10-14 |