Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6264255 | Latch drive assembly | — | 2001-07-24 |
| 5651568 | Privacy snib mechanism | Lawrence John McLaughlan | 1997-07-29 |
| 5484177 | Dual function lock mechanism | Erwin R. O. Liebherr, deceased, by Helga L. A. Liebherr, executrix | 1996-01-16 |