Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D318077 | Toy building element | Erling T. Dideriksen | 1991-07-09 |
| D317634 | Toy building element | Erling T. Dideriksen | 1991-06-18 |
| D317478 | Toy building element | Erling T. Dideriksen | 1991-06-11 |