Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4483164 | High security locks and key | Anker J. Nielsen, Jr. | 1984-11-20 |
| 4441343 | High security locks and key | Anker J. Nielsen, Jr. | 1984-04-10 |
| 4420864 | Bolt type lock puller | — | 1983-12-20 |
| 4414829 | Locking device for an electric meter box | Anker J. Nielsen, Jr. | 1983-11-15 |
| 4403386 | Bolt type lock puller | — | 1983-09-13 |