Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640863 | Clutch mechanism for door lock system | — | 1997-06-24 |
| 5641187 | Electromagnetic shear lock | — | 1997-06-24 |
| 5611582 | Impact resistant armature | John E. Walsh, James C. Wobbles | 1997-03-18 |
| 5608298 | Privacy protection for electronic lock system | Gary E. Lavelle | 1997-03-04 |