Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D345591 | Element for a toy building set | — | 1994-03-29 |
| D335156 | Element for a toy building set | Jens N. Knudsen | 1993-04-27 |
| D291101 | Toy construction piece | Jens N. Knudsen | 1987-07-28 |