Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6134330 | Ultra bass | Gerrit De Poortere, Ronaldus Maria Aarts | 2000-10-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6134330 | Ultra bass | Gerrit De Poortere, Ronaldus Maria Aarts | 2000-10-17 |