Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5987306 | System for monitoring telephone networks and/or data communication networks, especially mobile telephone networks | Rune Berntzen | 1999-11-16 |
| 4869345 | Radome ladder | — | 1989-09-26 |
| 4702347 | Folding, burglar proof fire escape ladder with separate release stations and safety belts with locking brackets | — | 1987-10-27 |