Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4294093 | Pin tumbler lock with pull-resistant key plug | Walter E. Best, William R. Foshee | 1981-10-13 |
| 4262507 | Cylinder lock with hotel function | William G. Roos | 1981-04-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4294093 | Pin tumbler lock with pull-resistant key plug | Walter E. Best, William R. Foshee | 1981-10-13 |
| 4262507 | Cylinder lock with hotel function | William G. Roos | 1981-04-21 |