Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5460561 | Toy kit of stackable geometric shape pieces to form a structure | — | 1995-10-24 |
| D266937 | Toy water canal sections | — | 1982-11-16 |
| 4242829 | Connecting device | Anders P. Arnstrom, Lennart K. Dahlgren | 1981-01-06 |