Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5548644 | Handset for a telephone station | Juergen Reuschel, Heinz-Dieter Mueller, Karl-Heinz Klauker | 1996-08-20 |
| 5030872 | Electro-acoustic transducer | Stefan Pieper | 1991-07-09 |