Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4355440 | Wallet theft guard | Thomas Christenson | 1982-10-26 |
| 4241476 | Wallet theft guard | Thomas Christenson | 1980-12-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4355440 | Wallet theft guard | Thomas Christenson | 1982-10-26 |
| 4241476 | Wallet theft guard | Thomas Christenson | 1980-12-30 |