Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4561097 | Puzzle formed of geometric pieces having an even number of equilateral sides | — | 1985-12-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4561097 | Puzzle formed of geometric pieces having an even number of equilateral sides | — | 1985-12-24 |