Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4527017 | Magnet system for an electroacoustic transducer | Wiert Kopinga | 1985-07-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4527017 | Magnet system for an electroacoustic transducer | Wiert Kopinga | 1985-07-02 |