Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4656800 | Method and construction of a cistern from component blocks and reinforcing rods | — | 1987-04-14 |
| 4355440 | Wallet theft guard | Francis J. Johansson | 1982-10-26 |
| 4241476 | Wallet theft guard | Francis J. Johansson | 1980-12-30 |