Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653559 | Underground housing for telecommunication device | Werner Stieb, Wolfgang Wenski, Hans-Holger Freckmann, Zbigniew Wielgolaski, Eberhard Gerwald +2 more | 1997-08-05 |
| 5097526 | Connector for two optical cables | Zbigniew Wiegolaski | 1992-03-17 |