Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204917 | Modular hearing aid | Horst Arndt, Edward S. Kroetsch, Fred J. Stork | 1993-04-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204917 | Modular hearing aid | Horst Arndt, Edward S. Kroetsch, Fred J. Stork | 1993-04-20 |