Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920331 | Security barrier with intrusion sesning and delaying means | Pieter L. Raath | 1990-04-24 |
| 4916433 | Protection of property | — | 1990-04-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920331 | Security barrier with intrusion sesning and delaying means | Pieter L. Raath | 1990-04-24 |
| 4916433 | Protection of property | — | 1990-04-10 |