Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826286 | Audio amplification device with volume control | Horst Arndt | 2004-11-30 |
| 6744897 | Hearing aid | — | 2004-06-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826286 | Audio amplification device with volume control | Horst Arndt | 2004-11-30 |
| 6744897 | Hearing aid | — | 2004-06-01 |