Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D546907 | Abdominal exercise device | Brenda Dykgraaf | 2007-07-17 |
| 6213923 | Back exercise device | Brenda Dykgraaf, François Duchesne | 2001-04-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D546907 | Abdominal exercise device | Brenda Dykgraaf | 2007-07-17 |
| 6213923 | Back exercise device | Brenda Dykgraaf, François Duchesne | 2001-04-10 |