Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5168734 | Re-combinate removable plug lock | Robert A. Duval | 1992-12-08 |
| 4993784 | Locking device | August M. Boucher, Wayne Crepso | 1991-02-19 |
| 4910982 | Self-assembling locking device | — | 1990-03-27 |
| 4647734 | Binary switch lock | — | 1987-03-03 |