Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4494227 | Stereo phono pick-up and/or cutter | Keimpe van Wijk | 1985-01-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4494227 | Stereo phono pick-up and/or cutter | Keimpe van Wijk | 1985-01-15 |