Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564955 | Coupling for use in the securing of a hook-shaped sound part on a behind-the-ear hearing aid | Jorgen Hartmann | 1986-01-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564955 | Coupling for use in the securing of a hook-shaped sound part on a behind-the-ear hearing aid | Jorgen Hartmann | 1986-01-14 |