Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4748771 | Fire door | Charles W. Lehnert, Ray W. Hinkel | 1988-06-07 |
| 4601502 | Door stop assembly | — | 1986-07-22 |
| 4421333 | Assembly for mounting a vehicle spray suppression device | — | 1983-12-20 |