Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831989 | Electroacoustic transducer having a moving coil and having movable holding elements for the connecting leads of the moving coil | Ewald Frasl | 2004-12-14 |
| 6681024 | Device including a built-in electroacoustic transducer for optimum speech reproduction | Heinz Renner | 2004-01-20 |