Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915645 | Miniaturized contact spring plug | Bernd Zinn | 1990-04-10 |
| 4707050 | Extra locking element for round plugs | — | 1987-11-17 |
| 4553126 | Resistance heating element | Manfred Brandstater | 1985-11-12 |
| 4540234 | Round plug socket provided with an over-spring | Jorgen Ehrenberg | 1985-09-10 |