Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5263527 | Fire door release mechanism | Wayne G. Marlatt | 1993-11-23 |
| 5253693 | Hold and release mechanism for a fire door spring tension adjusting wheel | Wayne G. Marlatt | 1993-10-19 |