Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976122 | Deadbolt assembly having selectable backset | Dale R. DuVall, Norbert J. Guetle, Jr., Ganesh Rajagopol | 1990-12-11 |
| 4900073 | Privacy door latch | — | 1990-02-13 |
| 4720127 | Door latch | — | 1988-01-19 |