Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641461 | Sliding door assembly | Francis M. Niekrasz, Gerald J. Bockwinkel | 1987-02-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641461 | Sliding door assembly | Francis M. Niekrasz, Gerald J. Bockwinkel | 1987-02-10 |