Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829685 | Stretcher frame with manually rotatable corner stretching elements | Gosta Rutger Persson | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829685 | Stretcher frame with manually rotatable corner stretching elements | Gosta Rutger Persson | 1989-05-16 |