Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5848503 | Constructional building set having an electric conductor | Kaj Svejstrup Mikkelsen, Erik Bach | 1998-12-15 |
| 5042972 | Toy building set provided with elements that can sense bar codes | Erik Bach | 1991-08-27 |
| 4894040 | Toy building element with elements for providing positional information | Erik Bach | 1990-01-16 |
| D299139 | Interface panel | Jan H. B k | 1988-12-27 |