Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D347453 | Interlocking construction toy element | Ernesto Daniel Gyurec | 1994-05-31 |
| 5168677 | Method of constructing flat building block modules from the union of two frustums by their congruent bases and slot connectors complement for a variety of constructive or amusing applications | Ernesto Daniel Gyurec | 1992-12-08 |