Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5077994 | Door lock having removable outside lever handle for the purpose of changing the key cylinder | Sidney J. Lampley | 1992-01-07 |
| 4765163 | Front-loaded knob assembly | David Dixon | 1988-08-23 |
| 4623174 | Latchbolt with adjustable backset | Sidney J. Lampley | 1986-11-18 |