Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244089 | Embossing device for embossing the edge of round blanks | Hein Schoenau | 2001-06-12 |
| 6138741 | Stability stretcher frame | — | 2000-10-31 |
| 5052462 | Canvas tensioning picture frame | — | 1991-10-01 |
| 4947922 | Tensioning stretched-canvas frame and method for use | — | 1990-08-14 |