Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597793 | Directional/omni-directional hearing aid microphone and housing | Gerald D. Richels | 2003-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597793 | Directional/omni-directional hearing aid microphone and housing | Gerald D. Richels | 2003-07-22 |