Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5768780 | Sealing of cylinder heads | Johan Christoffel Adendorff | 1998-06-23 |
| 5195594 | Apparatus and method for rapidly and reliably sealing off certain exit and entrance ways in response to smoke or fire | Thomas H. Allen | 1993-03-23 |