Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815138 | In-the-ear hearing-aid with pivotable inner and outer sections | — | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815138 | In-the-ear hearing-aid with pivotable inner and outer sections | — | 1989-03-21 |